diff --git a/Cargo.lock b/Cargo.lock
index 3d5f70c9a7..f0031ca25b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -572,22 +572,34 @@ 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]]
 name = "bitvec"
-version = "0.20.1"
+version = "0.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5011ffc90248764d7005b0e10c7294f5aa1bd87d9dd7248f4ad475b347c294d"
+checksum = "7774144344a4faa177370406a7ff5f1da24303817368584c6206c8303eb07848"
 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]]
@@ -742,7 +754,7 @@ dependencies = [
 name = "bp-messages"
 version = "0.1.0"
 dependencies = [
- "bitvec 0.20.1",
+ "bitvec 0.20.4",
  "bp-runtime",
  "frame-support",
  "frame-system",
@@ -2216,6 +2228,12 @@ 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 = "0.1.29"
@@ -3132,7 +3150,7 @@ name = "kusama-runtime"
 version = "0.9.12"
 dependencies = [
  "beefy-primitives",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "frame-benchmarking",
  "frame-election-provider-support",
  "frame-executive",
@@ -4438,7 +4456,7 @@ 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",
 ]
@@ -4811,7 +4829,7 @@ dependencies = [
 name = "pallet-bridge-messages"
 version = "0.1.0"
 dependencies = [
- "bitvec 0.20.1",
+ "bitvec 0.20.4",
  "bp-message-dispatch",
  "bp-messages",
  "bp-rialto",
@@ -5492,7 +5510,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "373b1a4c1338d9cd3d1fa53b3a11bdab5ab6bd80a20f7f7becd76953ae2be909"
 dependencies = [
  "arrayvec 0.7.0",
- "bitvec 0.20.1",
+ "bitvec 0.20.4",
  "byte-slice-cast",
  "impl-trait-for-tuples",
  "parity-scale-codec-derive",
@@ -5830,7 +5848,7 @@ name = "polkadot-availability-bitfield-distribution"
 version = "0.9.12"
 dependencies = [
  "assert_matches",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "env_logger 0.9.0",
  "futures 0.3.17",
  "log",
@@ -6104,7 +6122,7 @@ name = "polkadot-node-core-approval-voting"
 version = "0.9.12"
 dependencies = [
  "assert_matches",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "derive_more",
  "futures 0.3.17",
  "futures-timer 3.0.2",
@@ -6140,7 +6158,7 @@ name = "polkadot-node-core-av-store"
 version = "0.9.12"
 dependencies = [
  "assert_matches",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "env_logger 0.9.0",
  "futures 0.3.17",
  "futures-timer 3.0.2",
@@ -6167,7 +6185,7 @@ name = "polkadot-node-core-backing"
 version = "0.9.12"
 dependencies = [
  "assert_matches",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "futures 0.3.17",
  "polkadot-erasure-coding",
  "polkadot-node-primitives",
@@ -6267,7 +6285,7 @@ name = "polkadot-node-core-dispute-coordinator"
 version = "0.9.12"
 dependencies = [
  "assert_matches",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "derive_more",
  "futures 0.3.17",
  "kvdb",
@@ -6322,7 +6340,7 @@ dependencies = [
 name = "polkadot-node-core-provisioner"
 version = "0.9.12"
 dependencies = [
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "futures 0.3.17",
  "futures-timer 3.0.2",
  "polkadot-node-subsystem",
@@ -6601,7 +6619,7 @@ dependencies = [
 name = "polkadot-primitives"
 version = "0.9.12"
 dependencies = [
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "frame-system",
  "hex-literal",
  "parity-scale-codec",
@@ -6661,7 +6679,7 @@ name = "polkadot-runtime"
 version = "0.9.12"
 dependencies = [
  "beefy-primitives",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "frame-benchmarking",
  "frame-election-provider-support",
  "frame-executive",
@@ -6743,7 +6761,7 @@ name = "polkadot-runtime-common"
 version = "0.9.12"
 dependencies = [
  "beefy-primitives",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "frame-benchmarking",
  "frame-election-provider-support",
  "frame-support",
@@ -6793,7 +6811,7 @@ name = "polkadot-runtime-parachains"
 version = "0.9.12"
 dependencies = [
  "bitflags",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "derive_more",
  "frame-benchmarking",
  "frame-support",
@@ -7074,7 +7092,7 @@ name = "polkadot-test-runtime"
 version = "0.9.12"
 dependencies = [
  "beefy-primitives",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "frame-election-provider-support",
  "frame-executive",
  "frame-support",
@@ -7513,6 +7531,12 @@ 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 = "0.7.3"
@@ -9004,7 +9028,7 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c55b744399c25532d63a0d2789b109df8d46fc93752d46b0782991a931a782f"
 dependencies = [
- "bitvec 0.20.1",
+ "bitvec 0.20.4",
  "cfg-if 1.0.0",
  "derive_more",
  "parity-scale-codec",
@@ -11554,7 +11578,7 @@ name = "westend-runtime"
 version = "0.9.12"
 dependencies = [
  "beefy-primitives",
- "bitvec 0.20.1",
+ "bitvec 1.0.0",
  "frame-benchmarking",
  "frame-election-provider-support",
  "frame-executive",
@@ -11720,6 +11744,15 @@ 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/node/core/approval-voting/Cargo.toml b/node/core/approval-voting/Cargo.toml
index 35c57bf0fe..9aa316336b 100644
--- a/node/core/approval-voting/Cargo.toml
+++ b/node/core/approval-voting/Cargo.toml
@@ -9,7 +9,7 @@ futures = "0.3.17"
 futures-timer = "3.0.2"
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["bit-vec", "derive"] }
 tracing = "0.1.29"
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 lru = "0.7"
 merlin = "2.0"
 schnorrkel = "0.9.1"
diff --git a/node/core/av-store/Cargo.toml b/node/core/av-store/Cargo.toml
index c6a2d3a766..707e99940f 100644
--- a/node/core/av-store/Cargo.toml
+++ b/node/core/av-store/Cargo.toml
@@ -10,7 +10,7 @@ futures-timer = "3.0.2"
 kvdb = "0.10.0"
 thiserror = "1.0.30"
 tracing = "0.1.29"
-bitvec = "0.20.1"
+bitvec = "1.0.0"
 
 parity-scale-codec = { version = "2.3.1", features = ["derive"] }
 erasure = { package = "polkadot-erasure-coding", path = "../../../erasure-coding" }
diff --git a/node/core/backing/Cargo.toml b/node/core/backing/Cargo.toml
index b43d7b93ea..8d183873ef 100644
--- a/node/core/backing/Cargo.toml
+++ b/node/core/backing/Cargo.toml
@@ -13,7 +13,7 @@ polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsys
 polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 erasure-coding = { package = "polkadot-erasure-coding", path = "../../../erasure-coding" }
 statement-table = { package = "polkadot-statement-table", path = "../../../statement-table" }
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 tracing = "0.1.29"
 thiserror = "1.0.30"
 
diff --git a/node/core/dispute-coordinator/Cargo.toml b/node/core/dispute-coordinator/Cargo.toml
index 747b06ec0c..42b8209789 100644
--- a/node/core/dispute-coordinator/Cargo.toml
+++ b/node/core/dispute-coordinator/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 futures = "0.3.17"
 tracing = "0.1.29"
 parity-scale-codec = "2"
diff --git a/node/core/provisioner/Cargo.toml b/node/core/provisioner/Cargo.toml
index bc057e8762..f1739f015c 100644
--- a/node/core/provisioner/Cargo.toml
+++ b/node/core/provisioner/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 futures = "0.3.17"
 tracing = "0.1.29"
 thiserror = "1.0.30"
diff --git a/node/network/bitfield-distribution/Cargo.toml b/node/network/bitfield-distribution/Cargo.toml
index 8c5ff49a8a..5dc7cc68a6 100644
--- a/node/network/bitfield-distribution/Cargo.toml
+++ b/node/network/bitfield-distribution/Cargo.toml
@@ -14,7 +14,7 @@ polkadot-node-network-protocol = { path = "../../network/protocol" }
 
 [dev-dependencies]
 polkadot-node-subsystem-test-helpers = { path = "../../subsystem-test-helpers" }
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-application-crypto = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
diff --git a/primitives/Cargo.toml b/primitives/Cargo.toml
index c84c0f8f77..8f9b5c5408 100644
--- a/primitives/Cargo.toml
+++ b/primitives/Cargo.toml
@@ -24,7 +24,7 @@ runtime_primitives = { package = "sp-runtime", git = "https://github.com/parityt
 polkadot-parachain = { path = "../parachain", default-features = false }
 polkadot-core-primitives = { path = "../core-primitives", default-features = false }
 trie = { package = "sp-trie", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 frame-system = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 hex-literal = "0.3.3"
 parity-util-mem = { version = "0.10.0", default-features = false, optional = true }
diff --git a/runtime/common/Cargo.toml b/runtime/common/Cargo.toml
index 38b4092c6f..d8e86de469 100644
--- a/runtime/common/Cargo.toml
+++ b/runtime/common/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 impl-trait-for-tuples = "0.2.0"
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/runtime/kusama/Cargo.toml b/runtime/kusama/Cargo.toml
index cdd949aeb4..bcc54d63a9 100644
--- a/runtime/kusama/Cargo.toml
+++ b/runtime/kusama/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 build = "build.rs"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "1.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
diff --git a/runtime/parachains/Cargo.toml b/runtime/parachains/Cargo.toml
index da5e695b71..38ca0f9c04 100644
--- a/runtime/parachains/Cargo.toml
+++ b/runtime/parachains/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/runtime/polkadot/Cargo.toml b/runtime/polkadot/Cargo.toml
index 10a9fecaea..508003b76b 100644
--- a/runtime/polkadot/Cargo.toml
+++ b/runtime/polkadot/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 build = "build.rs"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "1.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
diff --git a/runtime/test-runtime/Cargo.toml b/runtime/test-runtime/Cargo.toml
index 8c303041bd..2a96857cd8 100644
--- a/runtime/test-runtime/Cargo.toml
+++ b/runtime/test-runtime/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 build = "build.rs"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/runtime/westend/Cargo.toml b/runtime/westend/Cargo.toml
index 65a4359944..7716419428 100644
--- a/runtime/westend/Cargo.toml
+++ b/runtime/westend/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 build = "build.rs"
 
 [dependencies]
-bitvec = { version = "0.20.1", default-features = false, features = ["alloc"] }
+bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "1.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }