diff --git a/Cargo.lock b/Cargo.lock
index e9729c88f5f58..6a4c0e006b98e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -460,7 +460,7 @@ dependencies = [
  "fnv",
  "futures 0.3.16",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-chain-spec",
  "sc-client-api",
@@ -496,7 +496,7 @@ dependencies = [
  "jsonrpc-derive",
  "jsonrpc-pubsub",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-rpc",
  "sc-utils",
@@ -525,7 +525,7 @@ version = "4.0.0-dev"
 dependencies = [
  "hex",
  "hex-literal",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-api",
  "sp-application-crypto",
@@ -582,10 +582,10 @@ version = "0.19.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8942c8d352ae1838c9dda0b0ca2ab657696ef2232a20147cf1b30ae1a9cb4321"
 dependencies = [
- "funty",
+ "funty 1.1.0",
  "radium 0.5.3",
  "tap",
- "wyz",
+ "wyz 0.2.0",
 ]
 
 [[package]]
@@ -594,10 +594,22 @@ version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f682656975d3a682daff957be4ddeb65d6ad656737cd821f2d00685ae466af1"
 dependencies = [
- "funty",
+ "funty 1.1.0",
  "radium 0.6.2",
  "tap",
- "wyz",
+ "wyz 0.2.0",
+]
+
+[[package]]
+name = "bitvec"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1489fcb93a5bb47da0462ca93ad252ad6af2145cce58d10d46a83931ba9f016b"
+dependencies = [
+ "funty 2.0.0",
+ "radium 0.7.0",
+ "tap",
+ "wyz 0.5.0",
 ]
 
 [[package]]
@@ -1867,7 +1879,7 @@ dependencies = [
  "futures-timer",
  "log 0.4.14",
  "num-traits",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "rand 0.8.4",
  "scale-info",
@@ -1929,7 +1941,7 @@ checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 name = "fork-tree"
 version = "3.0.0"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
 ]
 
 [[package]]
@@ -1951,7 +1963,7 @@ dependencies = [
  "hex-literal",
  "linregress",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "paste 1.0.6",
  "scale-info",
  "sp-api",
@@ -1975,7 +1987,7 @@ dependencies = [
  "handlebars",
  "linked-hash-map",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-cli",
  "sc-client-db",
  "sc-executor",
@@ -1995,7 +2007,7 @@ version = "4.0.0-dev"
 dependencies = [
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-arithmetic",
  "sp-core",
@@ -2016,7 +2028,7 @@ dependencies = [
  "merlin",
  "pallet-balances",
  "pallet-transaction-payment",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-keystore",
  "scale-info",
  "schnorrkel",
@@ -2039,7 +2051,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37ed5e5c346de62ca5c184b4325a6600d1eaca210666e4606fe4e449574978d0"
 dependencies = [
  "cfg-if 1.0.0",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
 ]
@@ -2056,7 +2068,7 @@ dependencies = [
  "impl-trait-for-tuples",
  "log 0.4.14",
  "once_cell",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "paste 1.0.6",
  "pretty_assertions",
@@ -2114,7 +2126,7 @@ dependencies = [
  "frame-support",
  "frame-support-test-pallet",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "pretty_assertions",
  "rustversion",
  "scale-info",
@@ -2135,7 +2147,7 @@ version = "4.0.0-dev"
 dependencies = [
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-runtime",
@@ -2148,7 +2160,7 @@ version = "4.0.0-dev"
 dependencies = [
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
 ]
 
@@ -2159,7 +2171,7 @@ dependencies = [
  "criterion",
  "frame-support",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -2178,7 +2190,7 @@ dependencies = [
  "frame-benchmarking",
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -2190,7 +2202,7 @@ dependencies = [
 name = "frame-system-rpc-runtime-api"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api",
 ]
 
@@ -2254,6 +2266,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fed34cd105917e91daa4da6b3728c47b068749d6a62c59811f06ed2ac71d9da7"
 
+[[package]]
+name = "funty"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+
 [[package]]
 name = "futures"
 version = "0.1.31"
@@ -2849,7 +2867,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "161ebdfec3c8e3b52bf61c4f3550a1eea4f9579d10dc1b936f3171ebdcd6c443"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
 ]
 
 [[package]]
@@ -4429,7 +4447,7 @@ dependencies = [
  "pallet-timestamp",
  "pallet-transaction-payment",
  "pallet-transaction-payment-rpc-runtime-api",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-api",
  "sp-block-builder",
@@ -4464,7 +4482,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7413f999671bd4745a7b624bd370a569fb6bc574b23c83a3c5ed2e453f3d5e2"
 dependencies = [
  "bitvec 0.19.5",
- "funty",
+ "funty 1.1.0",
  "memchr",
  "version_check 0.9.2",
 ]
@@ -4680,7 +4698,7 @@ dependencies = [
  "pallet-authorship",
  "pallet-balances",
  "pallet-transaction-payment",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "serde_json",
@@ -4700,7 +4718,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4715,7 +4733,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4730,7 +4748,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-application-crypto",
  "sp-consensus-aura",
@@ -4747,7 +4765,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-session",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-application-crypto",
  "sp-authority-discovery",
@@ -4764,7 +4782,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "impl-trait-for-tuples",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-authorship",
  "sp-core",
@@ -4789,7 +4807,7 @@ dependencies = [
  "pallet-staking",
  "pallet-staking-reward-curve",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-application-crypto",
  "sp-consensus-babe",
@@ -4812,7 +4830,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4861,7 +4879,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-transaction-payment",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4877,7 +4895,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-session",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -4903,7 +4921,7 @@ dependencies = [
  "pallet-mmr",
  "pallet-mmr-primitives",
  "pallet-session",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -4923,7 +4941,7 @@ dependencies = [
  "log 0.4.14",
  "pallet-balances",
  "pallet-treasury",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4942,7 +4960,7 @@ dependencies = [
  "pallet-balances",
  "pallet-bounties",
  "pallet-treasury",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4958,7 +4976,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -4985,7 +5003,7 @@ dependencies = [
  "pallet-randomness-collective-flip",
  "pallet-timestamp",
  "pallet-utility",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "pretty_assertions",
  "rand 0.8.4",
  "rand_pcg 0.3.1",
@@ -5007,7 +5025,7 @@ name = "pallet-contracts-primitives"
 version = "4.0.0-dev"
 dependencies = [
  "bitflags",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -5034,7 +5052,7 @@ dependencies = [
  "jsonrpc-derive",
  "pallet-contracts-primitives",
  "pallet-contracts-rpc-runtime-api",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "serde",
  "serde_json",
  "sp-api",
@@ -5049,7 +5067,7 @@ name = "pallet-contracts-rpc-runtime-api"
 version = "4.0.0-dev"
 dependencies = [
  "pallet-contracts-primitives",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-api",
  "sp-runtime",
@@ -5065,7 +5083,7 @@ dependencies = [
  "frame-system",
  "pallet-balances",
  "pallet-scheduler",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -5084,7 +5102,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "rand 0.7.3",
  "scale-info",
@@ -5109,7 +5127,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5128,7 +5146,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5144,7 +5162,7 @@ dependencies = [
  "frame-system",
  "lite-json",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5159,7 +5177,7 @@ version = "3.0.0-dev"
 dependencies = [
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5176,7 +5194,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-arithmetic",
  "sp-core",
@@ -5202,7 +5220,7 @@ dependencies = [
  "pallet-staking",
  "pallet-staking-reward-curve",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-application-crypto",
  "sp-core",
@@ -5224,7 +5242,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5242,7 +5260,7 @@ dependencies = [
  "log 0.4.14",
  "pallet-authorship",
  "pallet-session",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-application-crypto",
  "sp-core",
@@ -5260,7 +5278,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5278,7 +5296,7 @@ dependencies = [
  "frame-support-test",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5294,7 +5312,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5313,7 +5331,7 @@ dependencies = [
  "frame-system",
  "hex-literal",
  "pallet-mmr-primitives",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5329,7 +5347,7 @@ dependencies = [
  "frame-system",
  "hex-literal",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "serde",
  "sp-api",
  "sp-core",
@@ -5345,7 +5363,7 @@ dependencies = [
  "jsonrpc-core-client",
  "jsonrpc-derive",
  "pallet-mmr-primitives",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "serde",
  "serde_json",
  "sp-api",
@@ -5362,7 +5380,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5377,7 +5395,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5392,7 +5410,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5408,7 +5426,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -5426,7 +5444,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5443,7 +5461,7 @@ dependencies = [
  "frame-system",
  "pallet-balances",
  "pallet-utility",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5457,7 +5475,7 @@ version = "4.0.0-dev"
 dependencies = [
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "safe-mix",
  "scale-info",
  "sp-core",
@@ -5473,7 +5491,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5490,7 +5508,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-preimage",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5506,7 +5524,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5523,7 +5541,7 @@ dependencies = [
  "impl-trait-for-tuples",
  "log 0.4.14",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5547,7 +5565,7 @@ dependencies = [
  "pallet-staking",
  "pallet-staking-reward-curve",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "rand 0.7.3",
  "scale-info",
  "sp-core",
@@ -5565,7 +5583,7 @@ dependencies = [
  "frame-support-test",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "rand_chacha 0.2.2",
  "scale-info",
  "sp-core",
@@ -5589,7 +5607,7 @@ dependencies = [
  "pallet-session",
  "pallet-staking-reward-curve",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "rand_chacha 0.2.2",
  "scale-info",
  "serde",
@@ -5629,7 +5647,7 @@ version = "4.0.0-dev"
 dependencies = [
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5644,7 +5662,7 @@ dependencies = [
  "frame-benchmarking",
  "frame-support",
  "frame-system",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5659,7 +5677,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-inherents",
@@ -5679,7 +5697,7 @@ dependencies = [
  "log 0.4.14",
  "pallet-balances",
  "pallet-treasury",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -5696,7 +5714,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "serde_json",
@@ -5715,7 +5733,7 @@ dependencies = [
  "jsonrpc-core-client",
  "jsonrpc-derive",
  "pallet-transaction-payment-rpc-runtime-api",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api",
  "sp-blockchain",
  "sp-core",
@@ -5728,7 +5746,7 @@ name = "pallet-transaction-payment-rpc-runtime-api"
 version = "4.0.0-dev"
 dependencies = [
  "pallet-transaction-payment",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api",
  "sp-runtime",
 ]
@@ -5742,7 +5760,7 @@ dependencies = [
  "frame-system",
  "hex-literal",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -5762,7 +5780,7 @@ dependencies = [
  "frame-system",
  "impl-trait-for-tuples",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -5780,7 +5798,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5796,7 +5814,7 @@ dependencies = [
  "frame-support",
  "frame-system",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5813,7 +5831,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5830,7 +5848,7 @@ dependencies = [
  "frame-system",
  "log 0.4.14",
  "pallet-balances",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -5867,7 +5885,21 @@ dependencies = [
  "bitvec 0.20.2",
  "byte-slice-cast",
  "impl-trait-for-tuples",
- "parity-scale-codec-derive",
+ "parity-scale-codec-derive 2.3.1",
+ "serde",
+]
+
+[[package]]
+name = "parity-scale-codec"
+version = "3.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8b44461635bbb1a0300f100a841e571e7d919c81c73075ef5d152ffdb521066"
+dependencies = [
+ "arrayvec 0.7.1",
+ "bitvec 1.0.0",
+ "byte-slice-cast",
+ "impl-trait-for-tuples",
+ "parity-scale-codec-derive 3.1.2",
  "serde",
 ]
 
@@ -5883,6 +5915,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "parity-scale-codec-derive"
+version = "3.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c45ed1f39709f5a89338fab50e59816b2e8815f5bb58276e7ddf9afd495f73f8"
+dependencies = [
+ "proc-macro-crate 1.1.0",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "parity-send-wrapper"
 version = "0.1.0"
@@ -6488,6 +6532,12 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "643f8f41a8ebc4c5dc4515c82bb8abd397b527fc20fd681b7c011c2aee5d44fb"
 
+[[package]]
+name = "radium"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
+
 [[package]]
 name = "rand"
 version = "0.6.5"
@@ -6859,7 +6909,7 @@ dependencies = [
  "jsonrpsee",
  "log 0.4.14",
  "pallet-elections-phragmen",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "serde",
  "serde_json",
  "sp-core",
@@ -7081,7 +7131,7 @@ dependencies = [
  "ip_network",
  "libp2p",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "prost",
  "prost-build",
  "quickcheck",
@@ -7106,7 +7156,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-block-builder",
  "sc-client-api",
@@ -7132,7 +7182,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-block-builder-ver",
  "sc-client-api",
@@ -7156,7 +7206,7 @@ dependencies = [
 name = "sc-block-builder"
 version = "0.10.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-client-api",
  "sp-api",
  "sp-block-builder",
@@ -7174,7 +7224,7 @@ version = "0.10.0-dev"
 dependencies = [
  "extrinsic-shuffler",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-client-api",
  "sp-api",
  "sp-block-builder",
@@ -7194,7 +7244,7 @@ version = "4.0.0-dev"
 dependencies = [
  "impl-trait-for-tuples",
  "memmap2 0.5.0",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-chain-spec-derive",
  "sc-network",
  "sc-telemetry",
@@ -7225,7 +7275,7 @@ dependencies = [
  "libp2p",
  "log 0.4.14",
  "names",
- "parity-scale-codec",
+ "parity-scale-codec 3.1.2",
  "rand 0.7.3",
  "regex",
  "rpassword",
@@ -7260,7 +7310,7 @@ dependencies = [
  "futures 0.3.16",
  "hash-db",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-executor",
  "sc-transaction-pool-api",
@@ -7293,7 +7343,7 @@ dependencies = [
  "linked-hash-map",
  "log 0.4.14",
  "parity-db",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "quickcheck",
  "sc-client-api",
@@ -7343,7 +7393,7 @@ dependencies = [
  "futures 0.3.16",
  "getrandom 0.2.3",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-block-builder",
  "sc-client-api",
@@ -7385,7 +7435,7 @@ dependencies = [
  "num-bigint",
  "num-rational 0.2.4",
  "num-traits",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "rand 0.7.3",
  "rand_chacha 0.2.2",
@@ -7456,7 +7506,7 @@ name = "sc-consensus-epochs"
 version = "0.10.0-dev"
 dependencies = [
  "fork-tree",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-client-api",
  "sc-consensus",
  "sp-blockchain",
@@ -7475,7 +7525,7 @@ dependencies = [
  "jsonrpc-core-client",
  "jsonrpc-derive",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-basic-authorship",
  "sc-client-api",
  "sc-consensus",
@@ -7511,7 +7561,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-client-api",
  "sc-consensus",
@@ -7534,7 +7584,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-client-api",
  "sc-consensus",
  "sc-telemetry",
@@ -7573,7 +7623,7 @@ dependencies = [
  "libsecp256k1",
  "log 0.4.14",
  "lru 0.6.6",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "paste 1.0.6",
  "regex",
@@ -7609,7 +7659,7 @@ version = "0.10.0-dev"
 dependencies = [
  "derive_more",
  "environmental",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-allocator",
  "sp-core",
  "sp-maybe-compressed-blob",
@@ -7627,7 +7677,7 @@ name = "sc-executor-wasmi"
 version = "0.10.0-dev"
 dependencies = [
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-allocator",
  "sc-executor-common",
  "scoped-tls",
@@ -7644,7 +7694,7 @@ dependencies = [
  "cfg-if 1.0.0",
  "libc",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-wasm 0.42.2",
  "sc-allocator",
  "sc-executor-common",
@@ -7670,7 +7720,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 3.1.2",
  "parking_lot 0.11.2",
  "rand 0.8.4",
  "sc-block-builder",
@@ -7756,7 +7806,7 @@ dependencies = [
  "linked_hash_set",
  "log 0.4.14",
  "lru 0.7.0",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "pin-project 1.0.10",
  "prost",
@@ -7849,7 +7899,7 @@ dependencies = [
  "lazy_static",
  "num_cpus",
  "once_cell",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "rand 0.7.3",
  "sc-block-builder",
@@ -7903,7 +7953,7 @@ dependencies = [
  "jsonrpc-pubsub",
  "lazy_static",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-block-builder",
  "sc-chain-spec",
@@ -7939,7 +7989,7 @@ dependencies = [
  "jsonrpc-derive",
  "jsonrpc-pubsub",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-chain-spec",
  "sc-transaction-pool-api",
@@ -7997,7 +8047,7 @@ dependencies = [
  "jsonrpc-core",
  "jsonrpc-pubsub",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "parking_lot 0.11.2",
  "pin-project 1.0.10",
@@ -8060,7 +8110,7 @@ dependencies = [
  "hex",
  "hex-literal",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 3.1.2",
  "parking_lot 0.11.2",
  "sc-block-builder",
  "sc-client-api",
@@ -8092,7 +8142,7 @@ name = "sc-state-db"
 version = "0.10.0-dev"
 dependencies = [
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "parity-util-mem-derive",
  "parking_lot 0.11.2",
@@ -8107,7 +8157,7 @@ dependencies = [
  "jsonrpc-core",
  "jsonrpc-core-client",
  "jsonrpc-derive",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-chain-spec",
  "sc-client-api",
  "sc-consensus-babe",
@@ -8190,7 +8240,7 @@ dependencies = [
  "hex",
  "linked-hash-map",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "parking_lot 0.11.2",
  "retain_mut",
@@ -8247,7 +8297,7 @@ dependencies = [
  "bitvec 0.20.2",
  "cfg-if 1.0.0",
  "derive_more",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info-derive",
  "serde",
 ]
@@ -8666,7 +8716,7 @@ version = "4.0.0-dev"
 dependencies = [
  "hash-db",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api-proc-macro",
  "sp-core",
  "sp-runtime",
@@ -8695,7 +8745,7 @@ dependencies = [
  "criterion",
  "futures 0.3.16",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "rustversion",
  "sc-block-builder",
  "sp-api",
@@ -8713,7 +8763,7 @@ dependencies = [
 name = "sp-application-crypto"
 version = "4.0.0"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-core",
@@ -8740,7 +8790,7 @@ dependencies = [
  "criterion",
  "integer-sqrt",
  "num-traits",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "primitive-types",
  "rand 0.7.3",
  "scale-info",
@@ -8764,7 +8814,7 @@ dependencies = [
 name = "sp-authority-discovery"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-api",
  "sp-application-crypto",
@@ -8777,7 +8827,7 @@ name = "sp-authorship"
 version = "4.0.0-dev"
 dependencies = [
  "async-trait",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-inherents",
  "sp-runtime",
  "sp-std",
@@ -8787,7 +8837,7 @@ dependencies = [
 name = "sp-block-builder"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api",
  "sp-inherents",
  "sp-runtime",
@@ -8801,7 +8851,7 @@ dependencies = [
  "futures 0.3.16",
  "log 0.4.14",
  "lru 0.7.0",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sp-api",
  "sp-consensus",
@@ -8819,7 +8869,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-core",
  "sp-inherents",
  "sp-runtime",
@@ -8835,7 +8885,7 @@ name = "sp-consensus-aura"
 version = "0.10.0-dev"
 dependencies = [
  "async-trait",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-api",
  "sp-application-crypto",
@@ -8853,7 +8903,7 @@ version = "0.10.0-dev"
 dependencies = [
  "async-trait",
  "merlin",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-api",
@@ -8873,7 +8923,7 @@ dependencies = [
 name = "sp-consensus-pow"
 version = "0.10.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api",
  "sp-core",
  "sp-runtime",
@@ -8884,7 +8934,7 @@ dependencies = [
 name = "sp-consensus-slots"
 version = "0.10.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-arithmetic",
@@ -8895,7 +8945,7 @@ dependencies = [
 name = "sp-consensus-vrf"
 version = "0.10.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "schnorrkel",
  "sp-core",
  "sp-runtime",
@@ -8924,7 +8974,7 @@ dependencies = [
  "log 0.4.14",
  "merlin",
  "num-traits",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "parking_lot 0.11.2",
  "primitive-types",
@@ -8998,7 +9048,7 @@ name = "sp-externalities"
 version = "0.10.0"
 dependencies = [
  "environmental",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-std",
  "sp-storage",
 ]
@@ -9009,7 +9059,7 @@ version = "4.0.0-dev"
 dependencies = [
  "finality-grandpa",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "serde",
  "sp-api",
@@ -9027,7 +9077,7 @@ dependencies = [
  "async-trait",
  "futures 0.3.16",
  "impl-trait-for-tuples",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-core",
  "sp-runtime",
  "sp-std",
@@ -9042,7 +9092,7 @@ dependencies = [
  "hash-db",
  "libsecp256k1",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sp-core",
  "sp-externalities",
@@ -9075,7 +9125,7 @@ dependencies = [
  "derive_more",
  "futures 0.3.16",
  "merlin",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "rand 0.7.3",
  "rand_chacha 0.2.2",
@@ -9096,7 +9146,7 @@ dependencies = [
 name = "sp-npos-elections"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "rand 0.7.3",
  "scale-info",
  "serde",
@@ -9113,7 +9163,7 @@ name = "sp-npos-elections-fuzzer"
 version = "2.0.0-alpha.5"
 dependencies = [
  "honggfuzz",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "rand 0.7.3",
  "scale-info",
  "sp-npos-elections",
@@ -9125,7 +9175,7 @@ dependencies = [
 name = "sp-npos-elections-solution-type"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 3.1.2",
  "proc-macro-crate 1.1.0",
  "proc-macro2",
  "quote",
@@ -9172,7 +9222,7 @@ dependencies = [
  "hash256-std-hasher",
  "impl-trait-for-tuples",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "paste 1.0.6",
  "rand 0.7.3",
@@ -9196,7 +9246,7 @@ name = "sp-runtime-interface"
 version = "4.1.0-dev"
 dependencies = [
  "impl-trait-for-tuples",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "primitive-types",
  "rustversion",
  "sp-core",
@@ -9268,7 +9318,7 @@ version = "0.10.0-dev"
 dependencies = [
  "assert_matches",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-core",
  "sp-io",
  "sp-std",
@@ -9289,7 +9339,7 @@ dependencies = [
 name = "sp-session"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-api",
  "sp-core",
@@ -9302,7 +9352,7 @@ dependencies = [
 name = "sp-staking"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-runtime",
  "sp-std",
@@ -9316,7 +9366,7 @@ dependencies = [
  "hex-literal",
  "log 0.4.14",
  "num-traits",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "pretty_assertions",
  "rand 0.7.3",
@@ -9342,7 +9392,7 @@ name = "sp-storage"
 version = "4.0.0"
 dependencies = [
  "impl-serde",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "ref-cast",
  "serde",
  "sp-debug-derive",
@@ -9354,7 +9404,7 @@ name = "sp-tasks"
 version = "4.0.0-dev"
 dependencies = [
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-core",
  "sp-externalities",
  "sp-io",
@@ -9366,7 +9416,7 @@ dependencies = [
 name = "sp-test-primitives"
 version = "2.0.0"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "serde",
  "sp-application-crypto",
@@ -9381,7 +9431,7 @@ dependencies = [
  "async-trait",
  "futures-timer",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-api",
  "sp-inherents",
  "sp-runtime",
@@ -9393,7 +9443,7 @@ dependencies = [
 name = "sp-tracing"
 version = "4.0.0"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-std",
  "tracing",
  "tracing-core",
@@ -9414,7 +9464,7 @@ version = "4.0.0-dev"
 dependencies = [
  "async-trait",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-inherents",
@@ -9431,7 +9481,7 @@ dependencies = [
  "hash-db",
  "hex-literal",
  "memory-db 0.28.0",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "scale-info",
  "sp-core",
  "sp-runtime",
@@ -9448,7 +9498,7 @@ version = "4.0.0-dev"
 dependencies = [
  "async-trait",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "serde",
  "sp-core",
  "sp-inherents",
@@ -9461,7 +9511,7 @@ name = "sp-version"
 version = "4.0.0-dev"
 dependencies = [
  "impl-serde",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-wasm 0.42.2",
  "scale-info",
  "serde",
@@ -9476,7 +9526,7 @@ dependencies = [
 name = "sp-version-proc-macro"
 version = "4.0.0-dev"
 dependencies = [
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "proc-macro2",
  "quote",
  "sp-version",
@@ -9489,7 +9539,7 @@ version = "4.1.0-dev"
 dependencies = [
  "impl-trait-for-tuples",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sp-std",
  "wasmi",
  "wasmtime",
@@ -9650,7 +9700,7 @@ dependencies = [
  "frame-system",
  "futures 0.3.16",
  "jsonrpc-client-transports",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-rpc-api",
  "scale-info",
  "serde",
@@ -9668,7 +9718,7 @@ dependencies = [
  "jsonrpc-core-client",
  "jsonrpc-derive",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-client-api",
  "sc-rpc-api",
  "sc-transaction-pool",
@@ -9702,7 +9752,7 @@ dependencies = [
  "async-trait",
  "futures 0.3.16",
  "hex",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-client-api",
  "sc-client-db",
  "sc-consensus",
@@ -9733,7 +9783,7 @@ dependencies = [
  "memory-db 0.27.0",
  "pallet-babe",
  "pallet-timestamp",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parity-util-mem",
  "sc-block-builder",
  "sc-executor",
@@ -9773,7 +9823,7 @@ name = "substrate-test-runtime-client"
 version = "2.0.0"
 dependencies = [
  "futures 0.3.16",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "sc-block-builder",
  "sc-client-api",
  "sc-consensus",
@@ -9793,7 +9843,7 @@ version = "2.0.0"
 dependencies = [
  "derive_more",
  "futures 0.3.16",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "parking_lot 0.11.2",
  "sc-transaction-pool",
  "sc-transaction-pool-api",
@@ -10320,7 +10370,7 @@ dependencies = [
  "hash-db",
  "keccak-hasher",
  "memory-db 0.28.0",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "trie-db",
  "trie-root",
  "trie-standardmap",
@@ -10413,7 +10463,7 @@ version = "0.10.0-dev"
 dependencies = [
  "jsonrpsee",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 3.1.2",
  "remote-externalities",
  "sc-chain-spec",
  "sc-cli",
@@ -10650,7 +10700,7 @@ dependencies = [
  "derive_more",
  "futures 0.3.16",
  "log 0.4.14",
- "parity-scale-codec",
+ "parity-scale-codec 2.3.1",
  "serde",
  "sp-api",
  "sp-blockchain",
@@ -11381,6 +11431,15 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "85e60b0d1b5f99db2556934e21937020776a5d31520bf169e851ac44e6420214"
 
+[[package]]
+name = "wyz"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30b31594f29d27036c383b53b59ed3476874d518f0efb151b27a4c275141390e"
+dependencies = [
+ "tap",
+]
+
 [[package]]
 name = "x25519-dalek"
 version = "1.1.0"
diff --git a/client/cli/Cargo.toml b/client/cli/Cargo.toml
index 01f5aab25d5fa..a1076daeb7dba 100644
--- a/client/cli/Cargo.toml
+++ b/client/cli/Cargo.toml
@@ -19,7 +19,7 @@ tokio = { version = "1.15", features = [ "signal", "rt-multi-thread" ] }
 futures = "0.3.9"
 fdlimit = "0.2.1"
 libp2p = "0.40.0"
-parity-scale-codec = "2.3.1"
+parity-scale-codec = "3.1.2"
 hex = "0.4.2"
 rand = "0.7.3"
 tiny-bip39 = "0.8.2"
diff --git a/client/finality-grandpa/Cargo.toml b/client/finality-grandpa/Cargo.toml
index 3f9261c0c17af..68c82997cdf29 100644
--- a/client/finality-grandpa/Cargo.toml
+++ b/client/finality-grandpa/Cargo.toml
@@ -23,7 +23,7 @@ futures-timer = "3.0.1"
 log = "0.4.8"
 parking_lot = "0.11.2"
 rand = "0.8.4"
-parity-scale-codec = { version = "2.3.1", features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", features = ["derive"] }
 sp-application-crypto = { version = "4.0.0", path = "../../primitives/application-crypto" }
 sp-arithmetic = { version = "4.0.0", path = "../../primitives/arithmetic" }
 sp-runtime = { version = "4.1.0-dev", path = "../../primitives/runtime" }
diff --git a/client/service/test/Cargo.toml b/client/service/test/Cargo.toml
index 84b1d44e7bde6..241500c3eb938 100644
--- a/client/service/test/Cargo.toml
+++ b/client/service/test/Cargo.toml
@@ -40,5 +40,5 @@ sc-client-api = { version = "4.0.0-dev", path = "../../api" }
 sc-block-builder = { version = "0.10.0-dev", path = "../../block-builder" }
 sc-executor = { version = "0.10.0-dev", path = "../../executor" }
 sp-panic-handler = { version = "4.0.0", path = "../../../primitives/panic-handler" }
-parity-scale-codec = "2.3.1"
+parity-scale-codec = "3.1.2"
 sp-tracing = { version = "4.0.0", path = "../../../primitives/tracing" }
diff --git a/primitives/npos-elections/solution-type/Cargo.toml b/primitives/npos-elections/solution-type/Cargo.toml
index cfb3af4552e2e..2a1e189266726 100644
--- a/primitives/npos-elections/solution-type/Cargo.toml
+++ b/primitives/npos-elections/solution-type/Cargo.toml
@@ -21,7 +21,7 @@ proc-macro2 = "1.0.36"
 proc-macro-crate = "1.1.0"
 
 [dev-dependencies]
-parity-scale-codec = "2.3.1"
+parity-scale-codec = "3.1.2"
 scale-info = "1.0"
 sp-arithmetic = { path = "../../arithmetic", version = "4.0.0" }
 # used by generate_solution_type:
diff --git a/utils/frame/try-runtime/cli/Cargo.toml b/utils/frame/try-runtime/cli/Cargo.toml
index 2e214ec2307b7..8daa1f41d9c95 100644
--- a/utils/frame/try-runtime/cli/Cargo.toml
+++ b/utils/frame/try-runtime/cli/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 log = "0.4.8"
-parity-scale-codec = { version = "2.3.1" }
+parity-scale-codec = { version = "3.1.2" }
 serde = "1.0.132"
 structopt = "0.3.25"