diff --git a/Cargo.lock b/Cargo.lock
index b945f1a..7de9432 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,6 +10,15 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "addr2line"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "456d75cbb82da1ad150c8a9d97285ffcd21c9931dcb11e995903e7d75141b38b"
+dependencies = [
+ "gimli",
+]
+
 [[package]]
 name = "adler32"
 version = "1.0.4"
@@ -65,9 +74,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.28"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9a60d744a80c30fcb657dfe2c1b22bcb3e814c1a1e3674f32bf5820b570fbff"
+checksum = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
 
 [[package]]
 name = "app_dirs"
@@ -132,8 +141,8 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d0864d84b8e07b145449be9a8537db86bf9de5ce03b913214694643b4743502"
 dependencies = [
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -184,7 +193,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95fd83426b89b034bf4e9ceb9c533c2f2386b813fd3dcae0a425ec6f1837d78a"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "rustls",
  "webpki",
  "webpki-roots 0.19.0",
@@ -215,26 +224,17 @@ checksum = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
 
 [[package]]
 name = "backtrace"
-version = "0.3.46"
+version = "0.3.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1e692897359247cc6bb902933361652380af0f1b7651ae5c5013407f30e109e"
+checksum = "0df2f85c8a2abbe3b7d7e748052fdd9b76a0458fdeb16ad4223f5eca78c7c130"
 dependencies = [
- "backtrace-sys",
+ "addr2line",
  "cfg-if",
  "libc",
+ "object",
  "rustc-demangle",
 ]
 
-[[package]]
-name = "backtrace-sys"
-version = "0.1.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18fbebbe1c9d1f383a9cc7e8ccdb471b91c8d024ee9c2ca5b5346121fe8b4399"
-dependencies = [
- "cc",
- "libc",
-]
-
 [[package]]
 name = "base58"
 version = "0.1.0"
@@ -264,7 +264,7 @@ dependencies = [
  "log",
  "peeking_take_while",
  "proc-macro2",
- "quote 1.0.4",
+ "quote 1.0.5",
  "regex",
  "rustc-hash",
  "shlex",
@@ -380,18 +380,18 @@ checksum = "476e9cd489f9e121e02ffa6014a8ef220ecb15c05ed23fc34cca13925dc283fb"
 
 [[package]]
 name = "bstr"
-version = "0.2.12"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2889e6d50f394968c8bf4240dc3f2a7eb4680844d27308f798229ac9d4725f41"
+checksum = "31accafdb70df7871592c058eca3985b71104e15ac32f64706022c58867da931"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "bumpalo"
-version = "3.2.1"
+version = "3.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12ae9db68ad7fac5fe51304d20f016c911539251075a214f8e663babefa35187"
+checksum = "5356f1d23ee24a1f785a56d1d1a5f0fd5b0f6a0c0fb2412ce11da71649ab78f6"
 
 [[package]]
 name = "byte-slice-cast"
@@ -436,9 +436,9 @@ checksum = "4964518bd3b4a8190e832886cdc0da9794f12e8e6c1613a9e90ff331c4c8724b"
 
 [[package]]
 name = "cc"
-version = "1.0.52"
+version = "1.0.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3d87b23d6a92cd03af510a5ade527033f6aa6fa92161e2d5863a907d4c5e31d"
+checksum = "404b1fe4f65288577753b17e3b36a04596ee784493ec249bf81c7f2d2acd751c"
 dependencies = [
  "jobserver",
 ]
@@ -491,9 +491,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "2.33.0"
+version = "2.33.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
+checksum = "bdfa80d47f954d53a35a64987ca1422f495b8d6483c0fe9f7117b36c2a792129"
 dependencies = [
  "ansi_term 0.11.0",
  "atty",
@@ -676,13 +676,13 @@ checksum = "11c0346158a19b3627234e15596f5e465c360fcdb97d817bcb255e0510f5a788"
 
 [[package]]
 name = "derive_more"
-version = "0.99.5"
+version = "0.99.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2323f3f47db9a0e77ce7a300605d8d2098597fc451ed1a97bb1f6411bb550a7"
+checksum = "46b046a346c374c6c3c84d2070bfe33904504686bdf949c2d8eb22edad3f270c"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -773,7 +773,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e43f2f1833d64e33f15592464d6fdd70f349dda7b1a53088eb83cd94014008c5"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
 ]
 
 [[package]]
@@ -793,8 +793,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "synstructure",
 ]
 
@@ -815,12 +815,12 @@ dependencies = [
 
 [[package]]
 name = "finality-grandpa"
-version = "0.12.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f4682570188cd105606e621b9992e580f717c15f8cd1b7d106b59f1c6e54680"
+checksum = "8feb87a63249689640ac9c011742c33139204e3c134293d3054022276869133b"
 dependencies = [
  "either",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 2.0.2",
  "log",
  "num-traits 0.2.11",
@@ -861,22 +861,22 @@ dependencies = [
 
 [[package]]
 name = "fnv"
-version = "1.0.6"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "fork-tree"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
 ]
 
 [[package]]
 name = "frame-benchmarking"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -892,8 +892,8 @@ dependencies = [
 
 [[package]]
 name = "frame-executive"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -907,8 +907,8 @@ dependencies = [
 
 [[package]]
 name = "frame-metadata"
-version = "11.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "11.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -918,8 +918,8 @@ dependencies = [
 
 [[package]]
 name = "frame-support"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "bitmask",
  "frame-metadata",
@@ -942,41 +942,41 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support-procedural-tools",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "frame-support-procedural-tools"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support-procedural-tools-derive",
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "frame-support-procedural-tools-derive"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "frame-system"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "impl-trait-for-tuples",
@@ -1031,9 +1031,9 @@ checksum = "1b980f2816d6ee8673b6517b52cb0e808a180efc92e5c19d02cdda79066703ef"
 
 [[package]]
 name = "futures"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c329ae8753502fb44ae4fc2b622fa2a94652c41e795143765ba0927f92ab780"
+checksum = "1e05b85ec287aac0dc34db7d4a569323df697f9c55b99b15d6b4ef8cde49f613"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1046,9 +1046,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0c77d04ce8edd9cb903932b608268b3fffec4163dc053b3b402bf47eac1f1a8"
+checksum = "f366ad74c28cca6ba456d95e6422883cfb4b252a83bed929c83abfdbbf2967d5"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -1065,9 +1065,9 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f25592f769825e89b92358db00d26f965761e094951ac44d3663ef25b7ac464a"
+checksum = "59f5fff90fd5d971f936ad674802482ba441b6f09ba5e15fd8b39145582ca399"
 
 [[package]]
 name = "futures-core-preview"
@@ -1092,7 +1092,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fdcef58a173af8148b182684c9f2d5250875adbcaff7b5794073894f9d8634a9"
 dependencies = [
  "futures 0.1.29",
- "futures 0.3.4",
+ "futures 0.3.5",
  "lazy_static",
  "log",
  "parking_lot 0.9.0",
@@ -1103,9 +1103,9 @@ dependencies = [
 
 [[package]]
 name = "futures-executor"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f674f3e1bcb15b37284a90cedf55afdba482ab061c407a9c0ebbd0f3109741ba"
+checksum = "10d6bb888be1153d3abeb9006b11b02cf5e9b209fda28693c31ae1e4e012e314"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -1115,33 +1115,36 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a638959aa96152c7a4cddf50fcb1e3fede0583b27157c26e67d6f99904090dc6"
+checksum = "de27142b013a8e869c14957e6d2edeef89e97c289e69d042ee3a49acd8b51789"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a5081aa3de1f7542a794a397cde100ed903b0630152d0973479018fd85423a7"
+checksum = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"
 dependencies = [
  "proc-macro-hack",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "futures-sink"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3466821b4bc114d95b087b850a724c6f83115e929bc88f1fa98a3304a944c8a6"
+checksum = "3f2032893cb734c7a05d85ce0cc8b8c4075278e93b24b66f9de99d6eb0fa8acc"
 
 [[package]]
 name = "futures-task"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b0a34e53cf6cdcd0178aa573aed466b646eb3db769570841fda0c7ede375a27"
+checksum = "bdb66b5f09e22019b1ab0830f7785bcea8e7a42148683f99214f73f8ec21a626"
+dependencies = [
+ "once_cell",
+]
 
 [[package]]
 name = "futures-timer"
@@ -1157,9 +1160,9 @@ checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
 
 [[package]]
 name = "futures-util"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22766cf25d64306bedf0384da004d05c9974ab104fcc4528f1236181c18004c5"
+checksum = "8764574ff08b701a084482c3c7031349104b07ac897393010494beaa18ce32c6"
 dependencies = [
  "futures 0.1.29",
  "futures-channel",
@@ -1169,6 +1172,7 @@ dependencies = [
  "futures-sink",
  "futures-task",
  "memchr",
+ "pin-project",
  "pin-utils",
  "proc-macro-hack",
  "proc-macro-nested",
@@ -1194,7 +1198,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0a73299e4718f5452e45980fc1d6957a070abe308d3700b63b8673f47e1c2b3"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.4",
+ "futures 0.3.5",
  "memchr",
  "pin-project",
 ]
@@ -1247,6 +1251,12 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcc8e0c9bce37868955864dbecd2b1ab2bdf967e6f28066d65aaac620444b65c"
+
 [[package]]
 name = "glob"
 version = "0.3.0"
@@ -1286,9 +1296,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "377038bf3c89d18d6ca1431e7a5027194fbd724ca10592b9487ede5e8e144f42"
+checksum = "79b7246d7e4b979c03fa093da39cfb3617a96bbeee6310af63991668d7e843ff"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -1299,7 +1309,7 @@ dependencies = [
  "indexmap",
  "log",
  "slab",
- "tokio 0.2.20",
+ "tokio 0.2.21",
  "tokio-util",
 ]
 
@@ -1491,7 +1501,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2 0.2.4",
+ "h2 0.2.5",
  "http 0.2.1",
  "http-body 0.3.1",
  "httparse",
@@ -1500,7 +1510,7 @@ dependencies = [
  "net2",
  "pin-project",
  "time",
- "tokio 0.2.20",
+ "tokio 0.2.21",
  "tower-service",
  "want 0.3.0",
 ]
@@ -1518,7 +1528,7 @@ dependencies = [
  "log",
  "rustls",
  "rustls-native-certs",
- "tokio 0.2.20",
+ "tokio 0.2.21",
  "tokio-rustls",
  "webpki",
 ]
@@ -1579,8 +1589,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ef5550a42e3740a0e71f909d4c861056a284060af885ae7aa6242820f920d9d"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -1598,19 +1608,13 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f65877bf7d44897a473350b1046277941cee20b263397e90869c50b6e766088b"
 
-[[package]]
-name = "interleaved-ordered"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "141340095b15ed7491bd3d4ced9d20cebfb826174b6bb03386381f62b01e3d77"
-
 [[package]]
 name = "intervalier"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "64fa110ec7b8f493f416eed552740d10e7030ad5f63b2308f82c9608ec2df275"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 2.0.2",
 ]
 
@@ -1714,8 +1718,8 @@ checksum = "8609af8f63b626e8e211f52441fcdb6ec54f1a446606b10d5c89ae9bf8a20058"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -1793,18 +1797,18 @@ dependencies = [
 
 [[package]]
 name = "kv-log-macro"
-version = "1.0.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c54d9f465d530a752e6ebdc217e081a7a614b48cb200f6f0aee21ba6bc9aabb"
+checksum = "2a2d3beed37e5483887d81eb39de6de03a8346531410e1306ca48a9a89bd3a51"
 dependencies = [
  "log",
 ]
 
 [[package]]
 name = "kvdb"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cad096c6849b2ef027fabe35c4aed356d0e3d3f586d0a8361e5e17f1e50a7ce5"
+checksum = "e763b2a9b500ba47948061d1e8bc3b5f03a8a1f067dbcf822a4d2c84d2b54a3a"
 dependencies = [
  "parity-util-mem",
  "smallvec 1.4.0",
@@ -1812,9 +1816,9 @@ dependencies = [
 
 [[package]]
 name = "kvdb-memorydb"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4aa954d12cfac958822dfd77aab34f3eec71f103b918c4ab79ab59a36ee594ea"
+checksum = "73027d5e228de6f503b5b7335d530404fc26230a6ae3e09b33ec6e45408509a4"
 dependencies = [
  "kvdb",
  "parity-util-mem",
@@ -1823,12 +1827,11 @@ dependencies = [
 
 [[package]]
 name = "kvdb-rocksdb"
-version = "0.7.0"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3f14c3a10c8894d26175e57e9e26032e6d6c49c30cbe2468c5bf5f6b64bb0be"
+checksum = "84384eca250c7ff67877eda5336f28a86586aaee24acb945643590671f6bfce1"
 dependencies = [
  "fs-swap",
- "interleaved-ordered",
  "kvdb",
  "log",
  "num_cpus",
@@ -1854,22 +1857,28 @@ checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 
 [[package]]
 name = "libc"
-version = "0.2.69"
+version = "0.2.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99e85c08494b21a9054e7fe1374a732aeadaff3980b6990b94bfd3a70f690005"
+checksum = "3baa92041a6fec78c687fa0cc2b3fae8884f743d672cf551bed1d6dac6988d0f"
 
 [[package]]
 name = "libflate"
-version = "0.1.27"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9135df43b1f5d0e333385cb6e7897ecd1a43d7d11b91ac003f4d2c2d2401fdd"
+checksum = "a1fbe6b967a94346446d37ace319ae85be7eca261bb8149325811ac435d35d64"
 dependencies = [
  "adler32",
  "crc32fast",
+ "libflate_lz77",
  "rle-decode-fast",
- "take_mut",
 ]
 
+[[package]]
+name = "libflate_lz77"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3286f09f7d4926fc486334f28d8d2e6ebe4f7f9994494b6dab27ddfad2c9b11b"
+
 [[package]]
 name = "libloading"
 version = "0.5.2"
@@ -1893,7 +1902,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32ea742c86405b659c358223a8f0f9f5a9eb27bb6083894c6340959b05269662"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.4",
+ "futures 0.3.5",
  "lazy_static",
  "libp2p-core",
  "libp2p-core-derive",
@@ -1928,7 +1937,7 @@ dependencies = [
  "ed25519-dalek",
  "either",
  "fnv",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "lazy_static",
  "libsecp256k1",
@@ -1957,8 +1966,8 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "329127858e4728db5ab60c33d5ae352a999325fdf190ed022ec7d3a4685ae2e6"
 dependencies = [
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -1967,7 +1976,7 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0d0993481203d68e5ce2f787d033fb0cac6b850659ed6c784612db678977c71"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p-core",
  "log",
 ]
@@ -1978,7 +1987,7 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a38ca3eb807789e26f41c82ca7cd2b3843c66c5587b8b5f709a2f421f3061414"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p-core",
  "libp2p-swarm",
  "log",
@@ -1998,7 +2007,7 @@ dependencies = [
  "bytes 0.5.4",
  "either",
  "fnv",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures_codec",
  "libp2p-core",
  "libp2p-swarm",
@@ -2025,7 +2034,7 @@ dependencies = [
  "data-encoding",
  "dns-parser",
  "either",
- "futures 0.3.4",
+ "futures 0.3.5",
  "lazy_static",
  "libp2p-core",
  "libp2p-swarm",
@@ -2045,7 +2054,7 @@ checksum = "0832882b06619b2e81d74e71447753ea3c068164a0bca67847d272e856a04a02"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures_codec",
  "libp2p-core",
  "log",
@@ -2060,7 +2069,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "918e94a649e1139c24ee9f1f8c1f2adaba6d157b9471af787f2d9beac8c29c77"
 dependencies = [
  "curve25519-dalek",
- "futures 0.3.4",
+ "futures 0.3.5",
  "lazy_static",
  "libp2p-core",
  "log",
@@ -2080,7 +2089,7 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f9bfbf87eebb492d040f9899c5c81c9738730465ac5e78d9b7a7d086d0f07230"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p-core",
  "libp2p-swarm",
  "log",
@@ -2095,7 +2104,7 @@ version = "0.18.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44ab289ae44cc691da0a6fe96aefa43f26c86c6c7813998e203f6d80f1860f18"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p-core",
  "log",
  "rand 0.7.3",
@@ -2111,7 +2120,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b37ea44823d3ed223e4605da94b50177bc520f05ae2452286700549a32d81669"
 dependencies = [
  "async-std",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "get_if_addrs",
  "ipnet",
@@ -2125,7 +2134,7 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3ac7dbde0f88cad191dcdfd073b8bae28d01823e8ca313f117b6ecb914160c3"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "js-sys",
  "libp2p-core",
  "parity-send-wrapper",
@@ -2142,7 +2151,7 @@ dependencies = [
  "async-tls",
  "bytes 0.5.4",
  "either",
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p-core",
  "log",
  "quicksink",
@@ -2160,7 +2169,7 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02f91aea50f6571e0bc6c058dc0e9b270afd41ec28dd94e9e4bf607e78b9ab87"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p-core",
  "parking_lot 0.10.2",
  "thiserror",
@@ -2427,7 +2436,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74cdcf7cfb3402881e15a1f95116cb033d69b33c83d481e1234777f5ef0c3d2c"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.4",
+ "futures 0.3.5",
  "log",
  "pin-project",
  "smallvec 1.4.0",
@@ -2500,11 +2509,12 @@ dependencies = [
 
 [[package]]
 name = "node-template"
-version = "2.0.0-alpha.7"
+version = "2.0.0-alpha.8"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "log",
  "node-template-runtime",
+ "parking_lot 0.10.2",
  "sc-basic-authorship",
  "sc-cli",
  "sc-client-api",
@@ -2528,7 +2538,7 @@ dependencies = [
 
 [[package]]
 name = "node-template-runtime"
-version = "2.0.0-alpha.7"
+version = "2.0.0-alpha.8"
 dependencies = [
  "frame-executive",
  "frame-support",
@@ -2582,9 +2592,9 @@ dependencies = [
 
 [[package]]
 name = "ntapi"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26e041cd983acbc087e30fcba770380cfa352d0e392e175b2344ebaf7ea0602"
+checksum = "7a31937dea023539c72ddae0e3571deadc1414b300483fa7aaec176168cfa9d2"
 dependencies = [
  "winapi 0.3.8",
 ]
@@ -2661,6 +2671,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "object"
+version = "0.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cbca9424c482ee628fa549d9c812e2cd22f1180b9222c9200fdfa6eb31aecb2"
+
 [[package]]
 name = "ole32-sys"
 version = "0.2.0"
@@ -2673,11 +2689,11 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.3.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1c601810575c99596d4afc46f78a678c80105117c379eb3650cf99b8a21ce5b"
+checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
 dependencies = [
- "parking_lot 0.9.0",
+ "parking_lot 0.10.2",
 ]
 
 [[package]]
@@ -2703,8 +2719,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-aura"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2724,8 +2740,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-balances"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -2739,8 +2755,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-finality-tracker"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2755,8 +2771,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-grandpa"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2764,17 +2780,19 @@ dependencies = [
  "pallet-session",
  "parity-scale-codec",
  "serde",
+ "sp-application-crypto",
  "sp-core",
  "sp-finality-grandpa",
  "sp-runtime",
+ "sp-session",
  "sp-staking",
  "sp-std",
 ]
 
 [[package]]
 name = "pallet-randomness-collective-flip"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2786,8 +2804,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-session"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2797,6 +2815,7 @@ dependencies = [
  "serde",
  "sp-io",
  "sp-runtime",
+ "sp-session",
  "sp-staking",
  "sp-std",
  "sp-trie",
@@ -2804,8 +2823,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-sudo"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2818,7 +2837,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-template"
-version = "2.0.0-alpha.7"
+version = "2.0.0-alpha.8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2830,8 +2849,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-timestamp"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -2847,8 +2866,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2860,8 +2879,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment-rpc-runtime-api"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -2957,8 +2976,8 @@ checksum = "5a0ec292e92e8ec7c58e576adacc1e3f399c597c8f263c42f18420abe58e7245"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -2989,7 +3008,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f557c32c6d268a07c921471619c0295f5efad3a0e76d4f97a05c091a51d110b2"
 dependencies = [
  "proc-macro2",
- "syn 1.0.18",
+ "syn 1.0.21",
  "synstructure",
 ]
 
@@ -3067,8 +3086,8 @@ checksum = "2e0bf239e447e67ff6d16a8bb5e4d4bd2343acf5066061c0e8e06ac5ba8ca68c"
 dependencies = [
  "proc-macro-hack",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -3111,29 +3130,29 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "0.4.10"
+version = "0.4.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36e3dcd42688c05a66f841d22c5d8390d9a5d4c9aaf57b9285eae4900a080063"
+checksum = "81d480cb4e89522ccda96d0eed9af94180b7a5f93fb28f66e1fd7d68431663d1"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.10"
+version = "0.4.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4d7346ac577ff1296e06a418e7618e22655bae834d4970cb6e39d6da8119969"
+checksum = "a82996f11efccb19b685b14b5df818de31c1edcee3daa256ab5775dd98e72feb"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "237844750cfbb86f67afe27eee600dfbbcb6188d734139b534cbfbf4f96792ae"
+checksum = "f7505eeebd78492e0f6108f7171c4948dbb120ee8119d9d77d0afa5469bef67f"
 
 [[package]]
 name = "pin-utils"
@@ -3188,8 +3207,8 @@ checksum = "98e9e4b82e0ef281812565ea4751049f1bdcdfccda7d3f459f2e138a40c08678"
 dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "version_check",
 ]
 
@@ -3200,8 +3219,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4f5444ead4e9935abd7f27dc51f7e852a0569ac888096d5ec2499470794e2e53"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "syn-mid",
  "version_check",
 ]
@@ -3229,9 +3248,9 @@ dependencies = [
 
 [[package]]
 name = "procfs"
-version = "0.7.8"
+version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe50036aa1b71e553a4a0c48ab7baabf8aa8c7a5a61aae06bf38c2eab7430475"
+checksum = "c434e93ef69c216e68e4f417c927b4f31502c3560b72cfdb6827e2321c5c6b3e"
 dependencies = [
  "bitflags",
  "byteorder",
@@ -3293,8 +3312,8 @@ dependencies = [
  "anyhow",
  "itertools",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -3338,9 +3357,9 @@ checksum = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 
 [[package]]
 name = "quote"
-version = "1.0.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c1f4b0efa5fc5e8ceb705136bfee52cfdb6a4e3509f770b478cd6ed434232a7"
+checksum = "42934bc9c8ab0d3b273a16d8551c8f0fcff46be73276ca083ec2414c15c4ba5e"
 dependencies = [
  "proc-macro2",
 ]
@@ -3605,8 +3624,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "602eb59cda66fcb9aec25841fb76bc01d2b34282dcdd705028da297db6f3eec8"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -3659,9 +3678,9 @@ checksum = "cabe4fa914dec5870285fa7f71f602645da47c486e68486d2b4ceb4a343e90ac"
 
 [[package]]
 name = "rocksdb"
-version = "0.13.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12069b106981c6103d3eab7dd1c86751482d0779a520b7c14954c8b586c1e643"
+checksum = "61aa17a99a2413cd71c1106691bf59dad7de0cd5099127f90e9d99c429c40d4a"
 dependencies = [
  "libc",
  "librocksdb-sys",
@@ -3735,7 +3754,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4da5fcb054c46f5a5dff833b129285a93d3f0179531735e6c866e8cc307d2020"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "pin-project",
  "static_assertions",
 ]
@@ -3757,10 +3776,10 @@ dependencies = [
 
 [[package]]
 name = "sc-basic-authorship"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
@@ -3779,8 +3798,8 @@ dependencies = [
 
 [[package]]
 name = "sc-block-builder"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
@@ -3795,8 +3814,8 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "impl-trait-for-tuples",
  "sc-chain-spec-derive",
@@ -3811,19 +3830,19 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec-derive"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "sc-cli"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "ansi_term 0.12.1",
  "app_dirs",
@@ -3833,7 +3852,7 @@ dependencies = [
  "derive_more",
  "env_logger",
  "fdlimit",
- "futures 0.3.4",
+ "futures 0.3.5",
  "lazy_static",
  "log",
  "names",
@@ -3859,17 +3878,17 @@ dependencies = [
  "structopt",
  "substrate-prometheus-endpoint",
  "time",
- "tokio 0.2.20",
+ "tokio 0.2.21",
 ]
 
 [[package]]
 name = "sc-client-api"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "fnv",
- "futures 0.3.4",
+ "futures 0.3.5",
  "hash-db",
  "hex-literal",
  "kvdb",
@@ -3900,8 +3919,8 @@ dependencies = [
 
 [[package]]
 name = "sc-client-db"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "blake2-rfc",
  "hash-db",
@@ -3929,8 +3948,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "sc-client-api",
  "sp-blockchain",
@@ -3940,11 +3959,11 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-aura"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
@@ -3966,14 +3985,15 @@ dependencies = [
  "sp-runtime",
  "sp-timestamp",
  "sp-version",
+ "substrate-prometheus-endpoint",
 ]
 
 [[package]]
 name = "sc-consensus-slots"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
@@ -3981,6 +4001,7 @@ dependencies = [
  "sc-client-api",
  "sc-telemetry",
  "sp-api",
+ "sp-application-crypto",
  "sp-blockchain",
  "sp-consensus",
  "sp-core",
@@ -3991,8 +4012,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "lazy_static",
@@ -4018,8 +4039,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-common"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "log",
@@ -4035,8 +4056,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -4050,14 +4071,14 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "assert_matches",
  "derive_more",
  "finality-grandpa",
  "fork-tree",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
@@ -4087,11 +4108,11 @@ dependencies = [
 
 [[package]]
 name = "sc-informant"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "ansi_term 0.12.1",
- "futures 0.3.4",
+ "futures 0.3.5",
  "log",
  "parity-util-mem",
  "sc-client-api",
@@ -4104,8 +4125,8 @@ dependencies = [
 
 [[package]]
 name = "sc-keystore"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "hex",
@@ -4119,8 +4140,8 @@ dependencies = [
 
 [[package]]
 name = "sc-network"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "bitflags",
  "bytes 0.5.4",
@@ -4129,7 +4150,7 @@ dependencies = [
  "erased-serde",
  "fnv",
  "fork-tree",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "futures_codec",
  "hex",
@@ -4170,28 +4191,27 @@ dependencies = [
 
 [[package]]
 name = "sc-network-gossip"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "libp2p",
  "log",
  "lru",
  "sc-network",
  "sp-runtime",
- "sp-utils",
  "wasm-timer",
 ]
 
 [[package]]
 name = "sc-offchain"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "hyper 0.13.5",
  "hyper-rustls",
@@ -4213,10 +4233,10 @@ dependencies = [
 
 [[package]]
 name = "sc-peerset"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "libp2p",
  "log",
  "serde_json",
@@ -4226,10 +4246,10 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "hash-db",
  "jsonrpc-core",
  "jsonrpc-pubsub",
@@ -4258,11 +4278,11 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-api"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
- "futures 0.3.4",
+ "futures 0.3.5",
  "jsonrpc-core",
  "jsonrpc-core-client",
  "jsonrpc-derive",
@@ -4282,8 +4302,8 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-server"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-http-server",
@@ -4297,13 +4317,13 @@ dependencies = [
 
 [[package]]
 name = "sc-service"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "exit-future",
  "futures 0.1.29",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "hash-db",
  "lazy_static",
@@ -4355,8 +4375,8 @@ dependencies = [
 
 [[package]]
 name = "sc-state-db"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -4369,11 +4389,11 @@ dependencies = [
 
 [[package]]
 name = "sc-telemetry"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "libp2p",
  "log",
@@ -4391,8 +4411,8 @@ dependencies = [
 
 [[package]]
 name = "sc-tracing"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "erased-serde",
  "log",
@@ -4406,11 +4426,11 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-graph"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
- "futures 0.3.4",
+ "futures 0.3.5",
  "linked-hash-map",
  "log",
  "parity-util-mem",
@@ -4426,11 +4446,11 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-pool"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-diagnose",
  "intervalier",
  "log",
@@ -4452,9 +4472,9 @@ dependencies = [
 
 [[package]]
 name = "schannel"
-version = "0.1.18"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "039c25b130bd8c1321ee2d7de7fde2659fa9c2744e4bb29711cfc852ea53cd19"
+checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
 dependencies = [
  "lazy_static",
  "winapi 0.3.8",
@@ -4496,9 +4516,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f331b9025654145cd425b9ded0caf8f5ae0df80d418b326e2dc1c3dc5eb0620"
+checksum = "64808902d7d99f78eaddd2b4e2509713babc3dc3c85ad6f4c447680f3c01e535"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -4540,29 +4560,29 @@ checksum = "a0eddf2e8f50ced781f288c19f18621fa72a3779e3cb58dbf23b07469b0abeb4"
 
 [[package]]
 name = "serde"
-version = "1.0.106"
+version = "1.0.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36df6ac6412072f67cf767ebbde4133a5b2e88e76dc6187fa7104cd16f783399"
+checksum = "99e7b308464d16b56eba9964e4972a3eee817760ab60d88c3f86e1fecb08204c"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.106"
+version = "1.0.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e549e3abf4fb8621bd1609f11dfc9f5e50320802273b12f3811a67e6716ea6c"
+checksum = "818fbf6bfa9a42d3bfcaca148547aa00c7b915bec71d1757aa2d44ca68771984"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.52"
+version = "1.0.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7894c8ed05b7a3a279aeb79025fdec1d3158080b75b98a08faf2806bb799edd"
+checksum = "993948e75b189211a9b31a7528f950c6adc21f9720b6438ff80a7fa2f864cea2"
 dependencies = [
  "itoa",
  "ryu",
@@ -4684,8 +4704,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a945ec7f7ce853e89ffa36be1e27dce9a43e82ff9093bf3461c30d5da74ed11b"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -4730,7 +4750,7 @@ dependencies = [
  "base64",
  "bytes 0.5.4",
  "flate2",
- "futures 0.3.4",
+ "futures 0.3.5",
  "http 0.2.1",
  "httparse",
  "log",
@@ -4743,8 +4763,8 @@ dependencies = [
 
 [[package]]
 name = "sp-allocator"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "log",
@@ -4755,8 +4775,8 @@ dependencies = [
 
 [[package]]
 name = "sp-api"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "hash-db",
  "parity-scale-codec",
@@ -4770,20 +4790,20 @@ dependencies = [
 
 [[package]]
 name = "sp-api-proc-macro"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "blake2-rfc",
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "sp-application-crypto"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -4794,8 +4814,8 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "integer-sqrt",
  "num-traits 0.2.11",
@@ -4808,8 +4828,8 @@ dependencies = [
 
 [[package]]
 name = "sp-block-builder"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -4820,8 +4840,8 @@ dependencies = [
 
 [[package]]
 name = "sp-blockchain"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "log",
@@ -4836,8 +4856,8 @@ dependencies = [
 
 [[package]]
 name = "sp-chain-spec"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "serde",
  "serde_json",
@@ -4845,11 +4865,11 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-timer 3.0.2",
  "libp2p",
  "log",
@@ -4863,12 +4883,13 @@ dependencies = [
  "sp-std",
  "sp-utils",
  "sp-version",
+ "substrate-prometheus-endpoint",
 ]
 
 [[package]]
 name = "sp-consensus-aura"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -4881,14 +4902,15 @@ dependencies = [
 
 [[package]]
 name = "sp-core"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "base58",
  "blake2-rfc",
  "byteorder",
+ "derive_more",
  "ed25519-dalek",
- "futures 0.3.4",
+ "futures 0.3.5",
  "hash-db",
  "hash256-std-hasher",
  "hex",
@@ -4922,8 +4944,8 @@ dependencies = [
 
 [[package]]
 name = "sp-database"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "kvdb",
  "parking_lot 0.10.2",
@@ -4931,18 +4953,18 @@ dependencies = [
 
 [[package]]
 name = "sp-debug-derive"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "sp-externalities"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "environmental",
  "parity-scale-codec",
@@ -4952,21 +4974,24 @@ dependencies = [
 
 [[package]]
 name = "sp-finality-grandpa"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
+ "finality-grandpa",
+ "log",
  "parity-scale-codec",
  "serde",
  "sp-api",
  "sp-application-crypto",
+ "sp-core",
  "sp-runtime",
  "sp-std",
 ]
 
 [[package]]
 name = "sp-finality-tracker"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -4975,8 +5000,8 @@ dependencies = [
 
 [[package]]
 name = "sp-inherents"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
  "parity-scale-codec",
@@ -4987,10 +5012,10 @@ dependencies = [
 
 [[package]]
 name = "sp-io"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "hash-db",
  "libsecp256k1",
  "log",
@@ -5007,8 +5032,8 @@ dependencies = [
 
 [[package]]
 name = "sp-keyring"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "lazy_static",
  "sp-core",
@@ -5018,8 +5043,8 @@ dependencies = [
 
 [[package]]
 name = "sp-offchain"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "sp-api",
  "sp-core",
@@ -5028,8 +5053,8 @@ dependencies = [
 
 [[package]]
 name = "sp-panic-handler"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "backtrace",
  "log",
@@ -5037,8 +5062,8 @@ dependencies = [
 
 [[package]]
 name = "sp-rpc"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "serde",
  "sp-core",
@@ -5046,8 +5071,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "hash256-std-hasher",
  "impl-trait-for-tuples",
@@ -5067,8 +5092,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "primitive-types",
@@ -5082,20 +5107,20 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-proc-macro"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "Inflector",
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
 name = "sp-serializer"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "serde",
  "serde_json",
@@ -5103,19 +5128,21 @@ dependencies = [
 
 [[package]]
 name = "sp-session"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
+ "parity-scale-codec",
  "sp-api",
  "sp-core",
  "sp-runtime",
+ "sp-staking",
  "sp-std",
 ]
 
 [[package]]
 name = "sp-staking"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "parity-scale-codec",
  "sp-runtime",
@@ -5124,8 +5151,8 @@ dependencies = [
 
 [[package]]
 name = "sp-state-machine"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "hash-db",
  "log",
@@ -5143,13 +5170,13 @@ dependencies = [
 
 [[package]]
 name = "sp-std"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 
 [[package]]
 name = "sp-storage"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "impl-serde 0.2.3",
  "ref-cast",
@@ -5160,8 +5187,8 @@ dependencies = [
 
 [[package]]
 name = "sp-timestamp"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -5174,19 +5201,19 @@ dependencies = [
 
 [[package]]
 name = "sp-tracing"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "tracing",
 ]
 
 [[package]]
 name = "sp-transaction-pool"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "derive_more",
- "futures 0.3.4",
+ "futures 0.3.5",
  "log",
  "parity-scale-codec",
  "serde",
@@ -5197,8 +5224,8 @@ dependencies = [
 
 [[package]]
 name = "sp-trie"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "hash-db",
  "memory-db",
@@ -5211,10 +5238,10 @@ dependencies = [
 
 [[package]]
 name = "sp-utils"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "futures-core",
  "lazy_static",
  "prometheus",
@@ -5222,8 +5249,8 @@ dependencies = [
 
 [[package]]
 name = "sp-version"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "impl-serde 0.2.3",
  "parity-scale-codec",
@@ -5234,8 +5261,8 @@ dependencies = [
 
 [[package]]
 name = "sp-wasm-interface"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -5305,8 +5332,8 @@ dependencies = [
  "heck",
  "proc-macro-error",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -5326,8 +5353,8 @@ checksum = "0054a7df764039a6cd8592b9de84be4bec368ff081d203a7d5371cbfa8e65c81"
 dependencies = [
  "heck",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -5344,16 +5371,16 @@ dependencies = [
 
 [[package]]
 name = "substrate-build-script-utils"
-version = "2.0.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "2.0.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "platforms",
 ]
 
 [[package]]
 name = "substrate-prometheus-endpoint"
-version = "0.8.0-alpha.7"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.7#83a6f1add7957160283ac5d7e627da06beb725d9"
+version = "0.8.0-alpha.8"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 dependencies = [
  "async-std",
  "derive_more",
@@ -5361,13 +5388,13 @@ dependencies = [
  "hyper 0.13.5",
  "log",
  "prometheus",
- "tokio 0.2.20",
+ "tokio 0.2.21",
 ]
 
 [[package]]
 name = "substrate-wasm-builder-runner"
-version = "1.0.5"
-source = "git+https://github.com/paritytech/substrate.git#a2512e837003db3d3267764283edf31cf95a206c"
+version = "1.0.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.8#7e9a2ae78d27cc56e053fbec3b34a1a258b89561"
 
 [[package]]
 name = "subtle"
@@ -5394,12 +5421,12 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.18"
+version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "410a7488c0a728c7ceb4ad59b9567eb4053d02e8cc7f5c0e0eeeb39518369213"
+checksum = "4696caa4048ac7ce2bcd2e484b3cef88c1004e41b8e945a277e2c25dc0b72060"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
+ "quote 1.0.5",
  "unicode-xid 0.2.0",
 ]
 
@@ -5410,8 +5437,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -5430,8 +5457,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "unicode-xid 0.2.0",
 ]
 
@@ -5490,22 +5517,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.16"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d12a1dae4add0f0d568eebc7bf142f145ba1aa2544cafb195c76f0f409091b60"
+checksum = "467e5ff447618a916519a4e0d62772ab14f434897f3d63f05d8700ef1e9b22c1"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.16"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f34e0c1caaa462fd840ec6b768946ea1e7842620d94fe29d5b847138f521269"
+checksum = "e63c1091225b9834089b429bc4a2e01223470e3183e891582909e9d1c4cb55d9"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -5519,9 +5546,9 @@ dependencies = [
 
 [[package]]
 name = "threadpool"
-version = "1.8.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8dae184447c15d5a6916d973c642aec485105a13cd238192a6927ae3e077d66"
+checksum = "d050e60b33d41c19108b32cea32164033a9013fe3b46cbd4457559bfbf77afaa"
 dependencies = [
  "num_cpus",
 ]
@@ -5587,9 +5614,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "0.2.20"
+version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05c1d570eb1a36f0345a5ce9c6c6e665b70b73d11236912c0b477616aeec47b1"
+checksum = "d099fa27b9702bed751524694adbe393e18b36b204da91eb1cbbbbb4a5ee2d58"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -5709,7 +5736,7 @@ checksum = "4adb8b3e5f86b707f1b54e7c15b6de52617a823608ccda98a15d3a24222f265a"
 dependencies = [
  "futures-core",
  "rustls",
- "tokio 0.2.20",
+ "tokio 0.2.21",
  "webpki",
 ]
 
@@ -5821,7 +5848,7 @@ dependencies = [
  "futures-sink",
  "log",
  "pin-project-lite",
- "tokio 0.2.20",
+ "tokio 0.2.21",
 ]
 
 [[package]]
@@ -5841,9 +5868,9 @@ checksum = "e987b6bf443f4b5b3b6f38704195592cca41c5bb7aedd3c3693c7081f8289860"
 
 [[package]]
 name = "tracing"
-version = "0.1.13"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1721cc8cf7d770cc4257872507180f35a4797272f5962f24c806af9e7faf52ab"
+checksum = "a7c6b59d116d218cb2d990eb06b77b64043e0268ef7323aae63d8b30ae462923"
 dependencies = [
  "cfg-if",
  "tracing-attributes",
@@ -5852,12 +5879,13 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fbad39da2f9af1cae3016339ad7f2c7a9e870f12e8fd04c4fd7ef35b30c0d2b"
+checksum = "99bbad0de3fd923c9c3232ead88510b783e5a4d16a6154adffa3d53308de984c"
 dependencies = [
- "quote 1.0.4",
- "syn 1.0.18",
+ "proc-macro2",
+ "quote 1.0.5",
+ "syn 1.0.21",
 ]
 
 [[package]]
@@ -6086,8 +6114,8 @@ dependencies = [
  "lazy_static",
  "log",
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "wasm-bindgen-shared",
 ]
 
@@ -6109,7 +6137,7 @@ version = "0.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2cd85aa2c579e8892442954685f0d801f9129de24fa2136b2c6a539c76b65776"
 dependencies = [
- "quote 1.0.4",
+ "quote 1.0.5",
  "wasm-bindgen-macro-support",
 ]
 
@@ -6120,8 +6148,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8eb197bd3a47553334907ffd2f16507b4f4f01bbec3ac921a7719e0decdfe72a"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -6138,7 +6166,7 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "324c5e65a08699c9c4334ba136597ab22b85dccd4b65dd1e36ccf8f723a95b54"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "js-sys",
  "parking_lot 0.9.0",
  "pin-utils",
@@ -6312,7 +6340,7 @@ version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84300bb493cc878f3638b981c62b4632ec1a5c52daaa3036651e8c106d3b55ea"
 dependencies = [
- "futures 0.3.4",
+ "futures 0.3.5",
  "log",
  "nohash-hasher",
  "parking_lot 0.10.2",
@@ -6336,7 +6364,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de251eec69fc7c1bc3923403d18ececb929380e016afe103da75f396704f8ca2"
 dependencies = [
  "proc-macro2",
- "quote 1.0.4",
- "syn 1.0.18",
+ "quote 1.0.5",
+ "syn 1.0.21",
  "synstructure",
 ]
diff --git a/README.md b/README.md
index 4eefba4..e7bc563 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,6 @@
 # Substrate Node Template
 
-A new Substrate node, ready for hacking. This node includes:
-
-* A FRAME-based runtime
-* A template pallet
-* Aura block authoring
-* Grandpa finality gadget
+A new FRAME-based Substrate node, ready for hacking.
 
 ## Build
 
@@ -61,7 +56,7 @@ cargo run -- \
   --chain=local \
   --alice \
   --node-key 0000000000000000000000000000000000000000000000000000000000000001 \
-  --telemetry-url ws://telemetry.polkadot.io:1024 \
+  --telemetry-url 'ws://telemetry.polkadot.io:1024 0' \
   --validator
 ```
 
@@ -74,7 +69,7 @@ cargo run -- \
   --chain=local \
   --bob \
   --port 30334 \
-  --telemetry-url ws://telemetry.polkadot.io:1024 \
+  --telemetry-url 'ws://telemetry.polkadot.io:1024 0' \
   --validator
 ```
 
diff --git a/node/Cargo.toml b/node/Cargo.toml
index df66af1..204a3f7 100644
--- a/node/Cargo.toml
+++ b/node/Cargo.toml
@@ -1,13 +1,13 @@
 [package]
-authors = ['Anonymous']
+authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>']
 build = 'build.rs'
-description = 'Substrate Node template'
+description = 'Substrate node template'
 edition = '2018'
-homepage = 'https://substrate.dev'
+homepage = 'https://substrate.io'
 license = 'Unlicense'
 name = 'node-template'
-repository = 'https://github.com/paritytech/substrate/'
-version = '2.0.0-alpha.7'
+repository = 'https://github.com/substrate-developer-hub/substrate-node-template/'
+version = '2.0.0-alpha.8'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
@@ -15,93 +15,102 @@ targets = ['x86_64-unknown-linux-gnu']
 [dependencies]
 futures = '0.3.4'
 log = '0.4.8'
+parking_lot = '0.10.0'
 structopt = '0.3.8'
 
 [dependencies.node-template-runtime]
 path = '../runtime'
-version = '2.0.0-alpha.7'
+version = '2.0.0-alpha.8'
 
 [dependencies.sc-basic-authorship]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-cli]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-client-api]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sc-consensus]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-consensus-aura]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-executor]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-finality-grandpa]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-network]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-service]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sc-transaction-pool]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-consensus]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sp-consensus-aura]
 git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sp-core]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-finality-grandpa]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-inherents]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-runtime]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-transaction-pool]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [build-dependencies.substrate-build-script-utils]
 git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [[bin]]
 name = 'node-template'
diff --git a/node/src/command.rs b/node/src/command.rs
index 7950df9..18e1b22 100644
--- a/node/src/command.rs
+++ b/node/src/command.rs
@@ -1,24 +1,24 @@
-// Copyright 2017-2020 Parity Technologies (UK) Ltd.
 // This file is part of Substrate.
 
-// Substrate is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
+// Copyright (C) 2017-2020 Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
 
-// Substrate is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
 use crate::chain_spec;
 use crate::cli::Cli;
 use crate::service;
 use sc_cli::SubstrateCli;
-use sp_consensus_aura::sr25519::AuthorityPair as AuraPair;
 
 impl SubstrateCli for Cli {
 	fn impl_name() -> &'static str {
diff --git a/node/src/service.rs b/node/src/service.rs
index fe741f4..d02e9ea 100644
--- a/node/src/service.rs
+++ b/node/src/service.rs
@@ -11,7 +11,7 @@ use sc_executor::native_executor_instance;
 pub use sc_executor::NativeExecutor;
 use sp_consensus_aura::sr25519::{AuthorityPair as AuraPair};
 use sc_finality_grandpa::{
-	self, FinalityProofProvider as GrandpaFinalityProofProvider, SharedVoterState, StorageAndProofProvider
+	FinalityProofProvider as GrandpaFinalityProofProvider, StorageAndProofProvider, SharedVoterState,
 };
 
 // Our native executor instance.
@@ -28,6 +28,8 @@ native_executor_instance!(
 macro_rules! new_full_start {
 	($config:expr) => {{
 		use std::sync::Arc;
+		use sp_consensus_aura::sr25519::AuthorityPair as AuraPair;
+
 		let mut import_setup = None;
 		let inherent_data_providers = sp_inherents::InherentDataProviders::new();
 
@@ -41,12 +43,22 @@ macro_rules! new_full_start {
 				let pool_api = sc_transaction_pool::FullChainApi::new(client.clone());
 				Ok(sc_transaction_pool::BasicPool::new(config, std::sync::Arc::new(pool_api), prometheus_registry))
 			})?
-			.with_import_queue(|_config, client, mut select_chain, _transaction_pool, spawn_task_handle| {
+			.with_import_queue(|
+				_config,
+				client,
+				mut select_chain,
+				_transaction_pool,
+				spawn_task_handle,
+				registry,
+			| {
 				let select_chain = select_chain.take()
 					.ok_or_else(|| sc_service::Error::SelectChainRequired)?;
 
-				let (grandpa_block_import, grandpa_link) =
-					sc_finality_grandpa::block_import(client.clone(), &(client.clone() as Arc<_>), select_chain)?;
+				let (grandpa_block_import, grandpa_link) = sc_finality_grandpa::block_import(
+					client.clone(),
+					&(client.clone() as Arc<_>),
+					select_chain,
+				)?;
 
 				let aura_block_import = sc_consensus_aura::AuraBlockImport::<_, _, _, AuraPair>::new(
 					grandpa_block_import.clone(), client.clone(),
@@ -60,6 +72,7 @@ macro_rules! new_full_start {
 					client,
 					inherent_data_providers.clone(),
 					spawn_task_handle,
+					registry,
 				)?;
 
 				import_setup = Some((grandpa_block_import, grandpa_link));
@@ -72,9 +85,7 @@ macro_rules! new_full_start {
 }
 
 /// Builds a new service for a full client.
-pub fn new_full(config: Configuration)
-	-> Result<impl AbstractService, ServiceError>
-{
+pub fn new_full(config: Configuration) -> Result<impl AbstractService, ServiceError> {
 	let role = config.role.clone();
 	let force_authoring = config.force_authoring;
 	let name = config.network.node_name.clone();
@@ -157,7 +168,7 @@ pub fn new_full(config: Configuration)
 			telemetry_on_connect: Some(service.telemetry_on_connect_stream()),
 			voting_rule: sc_finality_grandpa::VotingRulesBuilder::default().build(),
 			prometheus_registry: service.prometheus_registry(),
-			shared_voter_state: SharedVoterState::empty()
+			shared_voter_state: SharedVoterState::empty(),
 		};
 
 		// the GRANDPA voter task is considered infallible, i.e.
@@ -178,9 +189,7 @@ pub fn new_full(config: Configuration)
 }
 
 /// Builds a new service for a light client.
-pub fn new_light(config: Configuration)
-	-> Result<impl AbstractService, ServiceError>
-{
+pub fn new_light(config: Configuration) -> Result<impl AbstractService, ServiceError> {
 	let inherent_data_providers = InherentDataProviders::new();
 
 	ServiceBuilder::new_light::<Block, RuntimeApi, Executor>(config)?
@@ -197,7 +206,16 @@ pub fn new_light(config: Configuration)
 			);
 			Ok(pool)
 		})?
-		.with_import_queue_and_fprb(|_config, client, backend, fetcher, _select_chain, _tx_pool, spawn_task_handle| {
+		.with_import_queue_and_fprb(|
+			_config,
+			client,
+			backend,
+			fetcher,
+			_select_chain,
+			_tx_pool,
+			spawn_task_handle,
+			prometheus_registry,
+		| {
 			let fetch_checker = fetcher
 				.map(|fetcher| fetcher.checker().clone())
 				.ok_or_else(|| "Trying to start light import queue without active fetch checker")?;
@@ -219,6 +237,7 @@ pub fn new_light(config: Configuration)
 				client,
 				inherent_data_providers.clone(),
 				spawn_task_handle,
+				prometheus_registry,
 			)?;
 
 			Ok((import_queue, finality_proof_request_builder))
diff --git a/pallets/template/Cargo.toml b/pallets/template/Cargo.toml
index 9620837..1bded4b 100644
--- a/pallets/template/Cargo.toml
+++ b/pallets/template/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
-authors = ['Anonymous']
-description = 'FRAME pallet template'
+authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>']
+description = 'Substrate FRAME pallet template'
 edition = '2018'
-homepage = 'https://substrate.dev'
+homepage = 'https://substrate.io'
 license = 'Unlicense'
 name = 'pallet-template'
 repository = 'https://github.com/paritytech/substrate/'
-version = '2.0.0-alpha.7'
+version = '2.0.0-alpha.8'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
@@ -18,29 +18,34 @@ package = 'parity-scale-codec'
 version = '1.3.0'
 
 [dependencies.frame-support]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.frame-system]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dev-dependencies.sp-core]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dev-dependencies.sp-io]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dev-dependencies.sp-runtime]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [features]
 default = ['std']
diff --git a/pallets/template/src/mock.rs b/pallets/template/src/mock.rs
index f587da3..33c66e2 100644
--- a/pallets/template/src/mock.rs
+++ b/pallets/template/src/mock.rs
@@ -36,11 +36,11 @@ impl system::Trait for Test {
 	type Event = ();
 	type BlockHashCount = BlockHashCount;
 	type MaximumBlockWeight = MaximumBlockWeight;
+	type DbWeight = ();
+	type BlockExecutionWeight = ();
+	type ExtrinsicBaseWeight = ();
 	type MaximumBlockLength = MaximumBlockLength;
 	type AvailableBlockRatio = AvailableBlockRatio;
-	type BlockExecutionWeight = ();
-	type DbWeight = ();
-	type ExtrinsicBaseWeight = ();
 	type Version = ();
 	type ModuleToIndex = ();
 	type AccountData = ();
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 8239ef0..79f6589 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -1,14 +1,16 @@
 [dependencies.aura]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-aura'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.balances]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-balances'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.codec]
 default-features = false
@@ -17,26 +19,30 @@ package = 'parity-scale-codec'
 version = '1.3.0'
 
 [dependencies.frame-executive]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.frame-support]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.grandpa]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-grandpa'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.randomness-collective-flip]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-randomness-collective-flip'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.serde]
 features = ['derive']
@@ -44,109 +50,125 @@ optional = true
 version = '1.0.101'
 
 [dependencies.sp-api]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-block-builder]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-consensus-aura]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-version = '0.8.0-alpha.7'
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '0.8.0-alpha.8'
 
 [dependencies.sp-core]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-inherents]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-io]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-offchain]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-runtime]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-session]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-std]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-transaction-pool]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sp-version]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-tag = 'v2.0.0-alpha.7'
+git = 'https://github.com/paritytech/substrate.git'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.sudo]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-sudo'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.system]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'frame-system'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.template]
 default-features = false
 package = 'pallet-template'
 path = '../pallets/template'
-version = '2.0.0-alpha.7'
+version = '2.0.0-alpha.8'
 
 [dependencies.timestamp]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-timestamp'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [dependencies.transaction-payment]
-git = 'https://github.com/paritytech/substrate.git'
 default-features = false
+git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-transaction-payment'
-tag = 'v2.0.0-alpha.7'
+tag = 'v2.0.0-alpha.8'
+version = '2.0.0-alpha.8'
 
 [build-dependencies.wasm-builder-runner]
 git = 'https://github.com/paritytech/substrate.git'
 package = 'substrate-wasm-builder-runner'
+tag = 'v2.0.0-alpha.8'
 version = '1.0.5'
 
 [package]
-authors = ['Anonymous']
+authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>']
 edition = '2018'
-homepage = 'https://substrate.dev'
+homepage = 'https://substrate.io'
 license = 'Unlicense'
 name = 'node-template-runtime'
-repository = 'https://github.com/paritytech/substrate/'
-version = '2.0.0-alpha.7'
+repository = 'https://github.com/substrate-developer-hub/substrate-node-template/'
+version = '2.0.0-alpha.8'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index 0deb35c..b1b73f3 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -9,17 +9,17 @@
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
 use sp_std::prelude::*;
-use sp_core::OpaqueMetadata;
+use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
 	ApplyExtrinsicResult, generic, create_runtime_str, impl_opaque_keys, MultiSignature,
 	transaction_validity::{TransactionValidity, TransactionSource},
 };
 use sp_runtime::traits::{
-	BlakeTwo256, Block as BlockT, IdentityLookup, Verify, ConvertInto, IdentifyAccount
+	BlakeTwo256, Block as BlockT, IdentityLookup, Verify, ConvertInto, IdentifyAccount, NumberFor,
 };
 use sp_api::impl_runtime_apis;
 use sp_consensus_aura::sr25519::AuthorityId as AuraId;
-use grandpa::AuthorityList as GrandpaAuthorityList;
+use grandpa::{AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};
 use grandpa::fg_primitives;
 use sp_version::RuntimeVersion;
 #[cfg(feature = "std")]
@@ -32,8 +32,8 @@ pub use timestamp::Call as TimestampCall;
 pub use balances::Call as BalancesCall;
 pub use sp_runtime::{Permill, Perbill};
 pub use frame_support::{
-	StorageValue, construct_runtime, parameter_types,
-	traits::Randomness,
+	construct_runtime, parameter_types, StorageValue,
+	traits::{KeyOwnerProofSystem, Randomness},
 	weights::{
 		Weight,
 		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
@@ -100,8 +100,8 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	authoring_version: 1,
 	spec_version: 1,
 	impl_version: 1,
-	transaction_version: 1,
 	apis: RUNTIME_API_VERSIONS,
+	transaction_version: 1,
 };
 
 pub const MILLISECS_PER_BLOCK: u64 = 6000;
@@ -123,7 +123,7 @@ pub fn native_version() -> NativeVersion {
 }
 
 parameter_types! {
-	pub const BlockHashCount: BlockNumber = 250;
+	pub const BlockHashCount: BlockNumber = 2400;
 	/// We allow for 2 seconds of compute with a 6 second average block time.
 	pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;
 	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
@@ -156,18 +156,18 @@ impl system::Trait for Runtime {
 	type BlockHashCount = BlockHashCount;
 	/// Maximum weight of each block.
 	type MaximumBlockWeight = MaximumBlockWeight;
+	/// The weight of database operations that the runtime can invoke.
+	type DbWeight = RocksDbWeight;
+	/// The weight of the overhead invoked on the block import process, independent of the
+	/// extrinsics included in that block.
+	type BlockExecutionWeight = BlockExecutionWeight;
+	/// The base weight of any extrinsic processed by the runtime, independent of the
+	/// logic of that extrinsic. (Signature verification, nonce increment, fee, etc...)
+	type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
 	/// Maximum size of all encoded transactions (in bytes) that are allowed in one block.
 	type MaximumBlockLength = MaximumBlockLength;
 	/// Portion of the block weight that is available to all normal transactions.
 	type AvailableBlockRatio = AvailableBlockRatio;
-	/// The weight of the overhead invoked on the block import process, independent of the
-	/// extrinsics included in that block.
-	type BlockExecutionWeight = BlockExecutionWeight;
-	/// The weight of database operations that the runtime can invoke.
-	type DbWeight = RocksDbWeight;
-	/// The base weight of any extrinsic processed by the runtime, independent of the
-	/// logic of that extrinsic. (Signature verification, nonce increment, fee, etc...)
-	type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
 	/// Version of the runtime.
 	type Version = Version;
 	/// Converts a module to the index of the module in `construct_runtime!`.
@@ -188,6 +188,19 @@ impl aura::Trait for Runtime {
 
 impl grandpa::Trait for Runtime {
 	type Event = Event;
+	type Call = Call;
+
+	type KeyOwnerProofSystem = ();
+
+	type KeyOwnerProof =
+		<Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(KeyTypeId, GrandpaId)>>::Proof;
+
+	type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(
+		KeyTypeId,
+		GrandpaId,
+	)>>::IdentificationTuple;
+
+	type HandleEquivocation = ();
 }
 
 parameter_types! {
@@ -268,7 +281,8 @@ pub type SignedBlock = generic::SignedBlock<Block>;
 pub type BlockId = generic::BlockId<Block>;
 /// The SignedExtension to the basic transaction logic.
 pub type SignedExtra = (
-	system::CheckVersion<Runtime>,
+	system::CheckSpecVersion<Runtime>,
+	system::CheckTxVersion<Runtime>,
 	system::CheckGenesis<Runtime>,
 	system::CheckEra<Runtime>,
 	system::CheckNonce<Runtime>,
@@ -360,7 +374,7 @@ impl_runtime_apis! {
 
 		fn decode_session_keys(
 			encoded: Vec<u8>,
-		) -> Option<Vec<(Vec<u8>, sp_core::crypto::KeyTypeId)>> {
+		) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {
 			opaque::SessionKeys::decode_into_raw_public_keys(&encoded)
 		}
 	}
@@ -369,5 +383,25 @@ impl_runtime_apis! {
 		fn grandpa_authorities() -> GrandpaAuthorityList {
 			Grandpa::grandpa_authorities()
 		}
+
+		fn submit_report_equivocation_extrinsic(
+			_equivocation_proof: fg_primitives::EquivocationProof<
+				<Block as BlockT>::Hash,
+				NumberFor<Block>,
+			>,
+			_key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,
+		) -> Option<()> {
+			None
+		}
+
+		fn generate_key_ownership_proof(
+			_set_id: fg_primitives::SetId,
+			_authority_id: GrandpaId,
+		) -> Option<fg_primitives::OpaqueKeyOwnershipProof> {
+			// NOTE: this is the only implementation possible since we've
+			// defined our key owner proof type as a bottom type (i.e. a type
+			// with no values).
+			None
+		}
 	}
 }