diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 1d76f17a99..84793ba8b0 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -858,7 +858,7 @@ dependencies = [
  "log",
  "regalloc",
  "serde",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "target-lexicon",
  "thiserror",
 ]
@@ -896,7 +896,7 @@ checksum = "2ef419efb4f94ecc02e5d9fbcc910d2bb7f0040e2de570e63a454f883bc891d6"
 dependencies = [
  "cranelift-codegen",
  "log",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "target-lexicon",
 ]
 
@@ -1574,7 +1574,7 @@ dependencies = [
  "parity-scale-codec",
  "paste",
  "serde",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-arithmetic",
  "sp-core",
  "sp-inherents",
@@ -2711,7 +2711,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -2749,7 +2749,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92312348daade49976a6dc59263ad39ed54f840aacb5664874f7c9aa16e5f848"
 dependencies = [
  "parity-util-mem",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
 ]
 
 [[package]]
@@ -2778,7 +2778,7 @@ dependencies = [
  "parking_lot 0.11.1",
  "regex",
  "rocksdb",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
 ]
 
 [[package]]
@@ -2873,7 +2873,7 @@ dependencies = [
  "parity-multiaddr",
  "parking_lot 0.11.1",
  "pin-project 1.0.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "wasm-timer",
 ]
 
@@ -2904,7 +2904,7 @@ dependencies = [
  "ring",
  "rw-stream-sink",
  "sha2 0.9.1",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "thiserror",
  "unsigned-varint",
  "void",
@@ -2958,7 +2958,7 @@ dependencies = [
  "prost",
  "prost-build",
  "rand 0.7.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
 ]
 
 [[package]]
@@ -2982,7 +2982,7 @@ dependencies = [
  "prost-build",
  "rand 0.7.3",
  "sha2 0.9.1",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "unsigned-varint",
  "wasm-timer",
 ]
@@ -2999,7 +2999,7 @@ dependencies = [
  "log",
  "prost",
  "prost-build",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "wasm-timer",
 ]
 
@@ -3022,7 +3022,7 @@ dependencies = [
  "prost-build",
  "rand 0.7.3",
  "sha2 0.9.1",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "uint 0.8.3",
  "unsigned-varint",
  "void",
@@ -3045,7 +3045,7 @@ dependencies = [
  "libp2p-swarm",
  "log",
  "rand 0.7.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "socket2",
  "void",
 ]
@@ -3064,7 +3064,7 @@ dependencies = [
  "nohash-hasher",
  "parking_lot 0.11.1",
  "rand 0.7.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "unsigned-varint",
 ]
 
@@ -3151,7 +3151,7 @@ dependencies = [
  "lru",
  "minicbor",
  "rand 0.7.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "unsigned-varint",
  "wasm-timer",
 ]
@@ -3167,7 +3167,7 @@ dependencies = [
  "libp2p-core",
  "log",
  "rand 0.7.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "void",
  "wasm-timer",
 ]
@@ -3640,7 +3640,7 @@ dependencies = [
  "futures 0.3.8",
  "log",
  "pin-project 1.0.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "unsigned-varint",
 ]
 
@@ -4379,7 +4379,7 @@ dependencies = [
  "pallet-transaction-payment-rpc-runtime-api",
  "parity-scale-codec",
  "serde",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-core",
  "sp-io",
  "sp-runtime",
@@ -4559,7 +4559,7 @@ dependencies = [
  "parity-util-mem-derive",
  "parking_lot 0.11.1",
  "primitive-types",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "winapi 0.3.9",
 ]
 
@@ -4670,7 +4670,7 @@ dependencies = [
  "cloudabi 0.0.3",
  "libc",
  "redox_syscall",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "winapi 0.3.9",
 ]
 
@@ -4685,7 +4685,7 @@ dependencies = [
  "instant",
  "libc",
  "redox_syscall",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "winapi 0.3.9",
 ]
 
@@ -5271,7 +5271,7 @@ dependencies = [
  "polkadot-primitives",
  "polkadot-statement-table",
  "sc-network",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-core",
  "substrate-prometheus-endpoint",
  "thiserror",
@@ -5296,7 +5296,7 @@ dependencies = [
  "polkadot-primitives",
  "polkadot-statement-table",
  "sc-network",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-core",
  "tracing",
  "tracing-futures",
@@ -5503,7 +5503,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -5797,7 +5797,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -6386,7 +6386,7 @@ version = "4.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a415a013dd7c5d4221382329a5a3482566da675737494935cbbbcdec04662f9d"
 dependencies = [
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
 ]
 
 [[package]]
@@ -6417,7 +6417,7 @@ checksum = "b9ba8aaf5fe7cf307c6dbdaeed85478961d29e25e3bee5169e11b92fa9f027a8"
 dependencies = [
  "log",
  "rustc-hash",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
 ]
 
 [[package]]
@@ -6530,7 +6530,7 @@ dependencies = [
  "polkadot-runtime-parachains",
  "serde",
  "serde_derive",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
@@ -7273,7 +7273,7 @@ dependencies = [
  "serde_json",
  "slog",
  "slog_derive",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-arithmetic",
  "sp-blockchain",
  "sp-consensus",
@@ -8010,9 +8010,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.6.0"
+version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a55ca5f3b68e41c979bf8c46a6f1da892ca4db8f94023ce0bd32407573b1ac0"
+checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
 
 [[package]]
 name = "snow"
@@ -8552,7 +8552,7 @@ dependencies = [
  "parity-scale-codec",
  "parking_lot 0.11.1",
  "rand 0.7.3",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-core",
  "sp-externalities",
  "sp-panic-handler",
@@ -9572,7 +9572,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sharded-slab",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "thread_local",
  "tracing",
  "tracing-core",
@@ -9596,7 +9596,7 @@ dependencies = [
  "hashbrown",
  "log",
  "rustc-hex",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
 ]
 
 [[package]]
@@ -9993,7 +9993,7 @@ dependencies = [
  "log",
  "region",
  "rustc-demangle",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "target-lexicon",
  "wasmparser 0.59.0",
  "wasmtime-environ",
@@ -10244,7 +10244,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 1.6.0",
+ "smallvec 1.6.1",
  "sp-api",
  "sp-authority-discovery",
  "sp-block-builder",
diff --git a/polkadot/node/subsystem-test-helpers/Cargo.toml b/polkadot/node/subsystem-test-helpers/Cargo.toml
index 11d956ba38..48bb1f0f21 100644
--- a/polkadot/node/subsystem-test-helpers/Cargo.toml
+++ b/polkadot/node/subsystem-test-helpers/Cargo.toml
@@ -20,7 +20,7 @@ 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 = "1.6.0"
+smallvec = "1.6.1"
 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 bb666351b3..e01287d9bb 100644
--- a/polkadot/node/subsystem/Cargo.toml
+++ b/polkadot/node/subsystem/Cargo.toml
@@ -24,7 +24,7 @@ polkadot-primitives = { path = "../../primitives" }
 polkadot-statement-table = { path = "../../statement-table" }
 polkadot-node-jaeger = { path = "../jaeger" }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-smallvec = "1.6.0"
+smallvec = "1.6.1"
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.23"
diff --git a/polkadot/runtime/kusama/Cargo.toml b/polkadot/runtime/kusama/Cargo.toml
index c98c553fab..3e66e7fe02 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 = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
-smallvec = "1.6.0"
+smallvec = "1.6.1"
 
 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 05a45075f0..00f9cb019f 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 = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
-smallvec = "1.6.0"
+smallvec = "1.6.1"
 
 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 d61861ec09..cde9101492 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 = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
-smallvec = "1.6.0"
+smallvec = "1.6.1"
 
 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 5184cdcc4d..1ee7c0718d 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 = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
-smallvec = "1.6.0"
+smallvec = "1.6.1"
 
 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 78370a9d2f..8db466b03d 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 = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
-smallvec = "1.6.0"
+smallvec = "1.6.1"
 static_assertions = "1.1.0"
 
 authority-discovery-primitives = { package = "sp-authority-discovery", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }