diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index ef7fed2486..c03a77d1db 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -893,7 +893,7 @@ dependencies = [
  "log",
  "regalloc",
  "serde",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "target-lexicon",
  "thiserror",
 ]
@@ -931,7 +931,7 @@ checksum = "2ef419efb4f94ecc02e5d9fbcc910d2bb7f0040e2de570e63a454f883bc891d6"
 dependencies = [
  "cranelift-codegen",
  "log",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "target-lexicon",
 ]
 
@@ -1635,7 +1635,7 @@ dependencies = [
  "parity-scale-codec",
  "paste",
  "serde",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-arithmetic",
  "sp-core",
  "sp-inherents",
@@ -2768,7 +2768,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -2806,7 +2806,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0315ef2f688e33844400b31f11c263f2b3dc21d8b9355c6891c5f185fae43f9a"
 dependencies = [
  "parity-util-mem",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
 ]
 
 [[package]]
@@ -2835,7 +2835,7 @@ dependencies = [
  "parking_lot 0.10.2",
  "regex",
  "rocksdb",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
 ]
 
 [[package]]
@@ -2930,7 +2930,7 @@ dependencies = [
  "parity-multiaddr",
  "parking_lot 0.11.1",
  "pin-project 1.0.1",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "wasm-timer",
 ]
 
@@ -2961,7 +2961,7 @@ dependencies = [
  "ring",
  "rw-stream-sink",
  "sha2 0.9.2",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "thiserror",
  "unsigned-varint 0.5.1",
  "void",
@@ -3015,7 +3015,7 @@ dependencies = [
  "prost",
  "prost-build",
  "rand 0.7.3",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
 ]
 
 [[package]]
@@ -3039,7 +3039,7 @@ dependencies = [
  "prost-build",
  "rand 0.7.3",
  "sha2 0.9.2",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "unsigned-varint 0.5.1",
  "wasm-timer",
 ]
@@ -3056,7 +3056,7 @@ dependencies = [
  "log",
  "prost",
  "prost-build",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "wasm-timer",
 ]
 
@@ -3080,7 +3080,7 @@ dependencies = [
  "prost-build",
  "rand 0.7.3",
  "sha2 0.9.2",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "uint",
  "unsigned-varint 0.5.1",
  "void",
@@ -3104,7 +3104,7 @@ dependencies = [
  "log",
  "net2",
  "rand 0.7.3",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "void",
  "wasm-timer",
 ]
@@ -3123,7 +3123,7 @@ dependencies = [
  "nohash-hasher",
  "parking_lot 0.11.1",
  "rand 0.7.3",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "unsigned-varint 0.5.1",
 ]
 
@@ -3210,7 +3210,7 @@ dependencies = [
  "lru 0.6.1",
  "minicbor",
  "rand 0.7.3",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "unsigned-varint 0.5.1",
  "wasm-timer",
 ]
@@ -3226,7 +3226,7 @@ dependencies = [
  "libp2p-core",
  "log",
  "rand 0.7.3",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "void",
  "wasm-timer",
 ]
@@ -3695,7 +3695,7 @@ dependencies = [
  "futures 0.3.8",
  "log",
  "pin-project 1.0.1",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "unsigned-varint 0.5.1",
 ]
 
@@ -4403,7 +4403,7 @@ dependencies = [
  "pallet-transaction-payment-rpc-runtime-api",
  "parity-scale-codec",
  "serde",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-core",
  "sp-io",
  "sp-runtime",
@@ -4582,7 +4582,7 @@ dependencies = [
  "parity-util-mem-derive",
  "parking_lot 0.10.2",
  "primitive-types",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "winapi 0.3.9",
 ]
 
@@ -4707,7 +4707,7 @@ dependencies = [
  "cloudabi 0.0.3",
  "libc",
  "redox_syscall",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "winapi 0.3.9",
 ]
 
@@ -4722,7 +4722,7 @@ dependencies = [
  "instant",
  "libc",
  "redox_syscall",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "winapi 0.3.9",
 ]
 
@@ -4961,7 +4961,7 @@ dependencies = [
  "polkadot-node-subsystem-util",
  "polkadot-primitives",
  "sc-keystore",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-application-crypto",
  "sp-core",
  "sp-keyring",
@@ -5004,7 +5004,7 @@ dependencies = [
  "polkadot-node-subsystem-test-helpers",
  "polkadot-node-subsystem-util",
  "polkadot-primitives",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-core",
  "sp-keyring",
  "thiserror",
@@ -5088,7 +5088,7 @@ dependencies = [
  "polkadot-overseer",
  "polkadot-primitives",
  "sc-service",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-core",
  "thiserror",
 ]
@@ -5269,7 +5269,7 @@ dependencies = [
  "polkadot-primitives",
  "polkadot-statement-table",
  "sc-network",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-core",
  "substrate-prometheus-endpoint",
  "thiserror",
@@ -5293,7 +5293,7 @@ dependencies = [
  "polkadot-primitives",
  "polkadot-statement-table",
  "sc-network",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-core",
 ]
 
@@ -5485,7 +5485,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -5776,7 +5776,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -6420,7 +6420,7 @@ version = "4.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a415a013dd7c5d4221382329a5a3482566da675737494935cbbbcdec04662f9d"
 dependencies = [
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
 ]
 
 [[package]]
@@ -6451,7 +6451,7 @@ checksum = "b9ba8aaf5fe7cf307c6dbdaeed85478961d29e25e3bee5169e11b92fa9f027a8"
 dependencies = [
  "log",
  "rustc-hash",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
 ]
 
 [[package]]
@@ -6564,7 +6564,7 @@ dependencies = [
  "polkadot-runtime-parachains",
  "serde",
  "serde_derive",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -7984,9 +7984,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.4.2"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbee7696b84bbf3d89a1c2eccff0850e3047ed46bfcd2e92c29a2d074d57e252"
+checksum = "7acad6f34eb9e8a259d3283d1e8c1d34d7415943d4895f65cc73813c7396fc85"
 
 [[package]]
 name = "snow"
@@ -8524,7 +8524,7 @@ dependencies = [
  "parity-scale-codec",
  "parking_lot 0.10.2",
  "rand 0.7.3",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-core",
  "sp-externalities",
  "sp-panic-handler",
@@ -9531,7 +9531,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sharded-slab",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "thread_local",
  "tracing",
  "tracing-core",
@@ -9555,7 +9555,7 @@ dependencies = [
  "hashbrown 0.8.2",
  "log",
  "rustc-hex",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
 ]
 
 [[package]]
@@ -9932,7 +9932,7 @@ dependencies = [
  "log",
  "region",
  "rustc-demangle",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "target-lexicon",
  "wasmparser 0.59.0",
  "wasmtime-environ",
@@ -10183,7 +10183,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.4.2",
+ "smallvec 1.5.0",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
diff --git a/polkadot/node/core/av-store/Cargo.toml b/polkadot/node/core/av-store/Cargo.toml
index d37df8b945..b8b964c4a4 100644
--- a/polkadot/node/core/av-store/Cargo.toml
+++ b/polkadot/node/core/av-store/Cargo.toml
@@ -24,7 +24,7 @@ sc-service = { git = "https://github.com/paritytech/substrate", branch = "master
 [dev-dependencies]
 env_logger = "0.8.1"
 assert_matches = "1.4.0"
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 kvdb-memorydb = "0.7.0"
 
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
diff --git a/polkadot/node/network/availability-distribution/Cargo.toml b/polkadot/node/network/availability-distribution/Cargo.toml
index 4a8f2de880..accb59c043 100644
--- a/polkadot/node/network/availability-distribution/Cargo.toml
+++ b/polkadot/node/network/availability-distribution/Cargo.toml
@@ -26,4 +26,4 @@ sc-keystore = { git = "https://github.com/paritytech/substrate", branch = "maste
 futures-timer = "3.0.2"
 env_logger = "0.8.1"
 assert_matches = "1.4.0"
-smallvec = "1.4.2"
+smallvec = "1.5.0"
diff --git a/polkadot/node/network/collator-protocol/Cargo.toml b/polkadot/node/network/collator-protocol/Cargo.toml
index da19fe442c..dade9a649e 100644
--- a/polkadot/node/network/collator-protocol/Cargo.toml
+++ b/polkadot/node/network/collator-protocol/Cargo.toml
@@ -18,7 +18,7 @@ polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsys
 [dev-dependencies]
 env_logger = "0.8.1"
 assert_matches = "1.4.0"
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 futures-timer = "3.0.2"
 
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["std"] }
diff --git a/polkadot/node/subsystem-test-helpers/Cargo.toml b/polkadot/node/subsystem-test-helpers/Cargo.toml
index 6b819c0269..20326cf077 100644
--- a/polkadot/node/subsystem-test-helpers/Cargo.toml
+++ b/polkadot/node/subsystem-test-helpers/Cargo.toml
@@ -19,7 +19,7 @@ polkadot-node-subsystem-util = { path = "../subsystem-util" }
 polkadot-primitives = { path = "../../primitives" }
 polkadot-statement-table = { path = "../../statement-table" }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 
 [dev-dependencies]
diff --git a/polkadot/node/subsystem/Cargo.toml b/polkadot/node/subsystem/Cargo.toml
index 2fef9f4c6a..372c641e6e 100644
--- a/polkadot/node/subsystem/Cargo.toml
+++ b/polkadot/node/subsystem/Cargo.toml
@@ -19,7 +19,7 @@ polkadot-node-network-protocol = { path = "../network/protocol" }
 polkadot-primitives = { path = "../../primitives" }
 polkadot-statement-table = { path = "../../statement-table" }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.22"
diff --git a/polkadot/runtime/kusama/Cargo.toml b/polkadot/runtime/kusama/Cargo.toml
index de1048d31a..3d89cdbc87 100644
--- a/polkadot/runtime/kusama/Cargo.toml
+++ b/polkadot/runtime/kusama/Cargo.toml
@@ -13,7 +13,7 @@ rustc-hex = { version = "2.1.0", default-features = false }
 serde = { version = "1.0.117", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 
 authority-discovery-primitives = { package = "sp-authority-discovery", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 babe-primitives = { package = "sp-consensus-babe", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/runtime/polkadot/Cargo.toml b/polkadot/runtime/polkadot/Cargo.toml
index 5f3460426e..d26ad528bf 100644
--- a/polkadot/runtime/polkadot/Cargo.toml
+++ b/polkadot/runtime/polkadot/Cargo.toml
@@ -13,7 +13,7 @@ rustc-hex = { version = "2.1.0", default-features = false }
 serde = { version = "1.0.117", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 
 authority-discovery-primitives = { package = "sp-authority-discovery", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 babe-primitives = { package = "sp-consensus-babe", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/runtime/rococo/Cargo.toml b/polkadot/runtime/rococo/Cargo.toml
index d6d75d5fc1..309608c641 100644
--- a/polkadot/runtime/rococo/Cargo.toml
+++ b/polkadot/runtime/rococo/Cargo.toml
@@ -9,7 +9,7 @@ build = "build.rs"
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 serde = { version = "1.0.117", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 
 frame-support = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 sp-api = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/runtime/test-runtime/Cargo.toml b/polkadot/runtime/test-runtime/Cargo.toml
index d4d651c31f..9f23f5d400 100644
--- a/polkadot/runtime/test-runtime/Cargo.toml
+++ b/polkadot/runtime/test-runtime/Cargo.toml
@@ -12,7 +12,7 @@ log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
 serde = { version = "1.0.117", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 
 authority-discovery-primitives = { package = "sp-authority-discovery", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 babe-primitives = { package = "sp-consensus-babe", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/runtime/westend/Cargo.toml b/polkadot/runtime/westend/Cargo.toml
index 12b20015c6..7544eecc99 100644
--- a/polkadot/runtime/westend/Cargo.toml
+++ b/polkadot/runtime/westend/Cargo.toml
@@ -12,7 +12,7 @@ log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
 serde = { version = "1.0.117", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
-smallvec = "1.4.2"
+smallvec = "1.5.0"
 static_assertions = "1.1.0"
 
 authority-discovery-primitives = { package = "sp-authority-discovery", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }