diff --git a/Cargo.lock b/Cargo.lock
index b19778cd672..3c977f51482 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -12297,9 +12297,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.21.1"
+version = "1.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0020c875007ad96677dcc890298f4b942882c5d4eb7cc8f439fc3bf813dc9c95"
+checksum = "a9e03c497dc955702ba729190dc4aac6f2a0ce97f913e5b1b5912fc5039d9099"
 dependencies = [
  "autocfg",
  "bytes",
@@ -12307,7 +12307,6 @@ dependencies = [
  "memchr",
  "mio",
  "num_cpus",
- "once_cell",
  "parking_lot 0.12.1",
  "pin-project-lite 0.2.9",
  "signal-hook-registry",
diff --git a/client/network/Cargo.toml b/client/network/Cargo.toml
index e24e30b7fd4..73dff3703e6 100644
--- a/client/network/Cargo.toml
+++ b/client/network/Cargo.toml
@@ -31,7 +31,7 @@ cumulus-relay-chain-interface = { path = "../relay-chain-interface" }
 
 [dev-dependencies]
 portpicker = "0.1.1"
-tokio = { version = "1.21.1", features = ["macros"] }
+tokio = { version = "1.21.2", features = ["macros"] }
 url = "2.3.1"
 
 # Substrate
diff --git a/client/pov-recovery/Cargo.toml b/client/pov-recovery/Cargo.toml
index d892b889a0b..4653f7af379 100644
--- a/client/pov-recovery/Cargo.toml
+++ b/client/pov-recovery/Cargo.toml
@@ -30,7 +30,7 @@ cumulus-primitives-core = { path = "../../primitives/core" }
 cumulus-relay-chain-interface = {path = "../relay-chain-interface"}
 
 [dev-dependencies]
-tokio = { version = "1.21.1", features = ["macros"] }
+tokio = { version = "1.21.2", features = ["macros"] }
 portpicker = "0.1.1"
 
 # Cumulus
diff --git a/client/relay-chain-minimal-node/Cargo.toml b/client/relay-chain-minimal-node/Cargo.toml
index 10022c05672..de7958d5340 100644
--- a/client/relay-chain-minimal-node/Cargo.toml
+++ b/client/relay-chain-minimal-node/Cargo.toml
@@ -46,4 +46,4 @@ tracing = "0.1.37"
 async-trait = "0.1.52"
 futures = "0.3.24"
 url = "2.2.2"
-tokio = { version = "1.17.0", features = ["macros"] }
+tokio = { version = "1.21.2", features = ["macros"] }
diff --git a/client/relay-chain-rpc-interface/Cargo.toml b/client/relay-chain-rpc-interface/Cargo.toml
index 22c1e26c9af..db5e7808f80 100644
--- a/client/relay-chain-rpc-interface/Cargo.toml
+++ b/client/relay-chain-rpc-interface/Cargo.toml
@@ -20,7 +20,7 @@ sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "
 sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-storage = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-rpc-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-tokio = { version = "1.21.1", features = ["sync"] }
+tokio = { version = "1.21.2", features = ["sync"] }
 
 futures = "0.3.24"
 futures-timer = "3.0.2"
diff --git a/polkadot-parachain/Cargo.toml b/polkadot-parachain/Cargo.toml
index 356662560f6..a871294aad9 100644
--- a/polkadot-parachain/Cargo.toml
+++ b/polkadot-parachain/Cargo.toml
@@ -92,7 +92,7 @@ substrate-build-script-utils = { git = "https://github.com/paritytech/substrate"
 assert_cmd = "2.0"
 nix = "0.25"
 tempfile = "3.3.0"
-tokio = { version = "1.21.1", features = ["macros", "time", "parking_lot"] }
+tokio = { version = "1.21.2", features = ["macros", "time", "parking_lot"] }
 wait-timeout = "0.2"
 # purge_chain_works works with rococo-local and needs to allow this
 polkadot-cli = { git = "https://github.com/paritytech/polkadot", branch = "master", features = ["rococo-native"] }
diff --git a/test/service/Cargo.toml b/test/service/Cargo.toml
index b58fe264bf6..1d4648d378d 100644
--- a/test/service/Cargo.toml
+++ b/test/service/Cargo.toml
@@ -16,7 +16,7 @@ criterion = { version = "0.4.0", features = [ "async_tokio" ] }
 jsonrpsee = { version = "0.15.1", features = ["server"] }
 rand = "0.8.5"
 serde = { version = "1.0.145", features = ["derive"] }
-tokio = { version = "1.21.1", features = ["macros"] }
+tokio = { version = "1.21.2", features = ["macros"] }
 tracing = "0.1.37"
 url = "2.3.1"