diff --git a/Cargo.lock b/Cargo.lock
index 8ba6613d..e4848d43 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2600,9 +2600,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.37.0"
+version = "1.38.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1adbebffeca75fcfd058afa480fb6c0b81e165a0323f9c9d39c9697e37c46787"
+checksum = "ba4f4a02a7a80d6f274636f0aa95c7e383b912d41fe721a31f29e29698585a4a"
 dependencies = [
  "backtrace",
  "bytes",
@@ -2619,9 +2619,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "2.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b8a1e28f2deaa14e508979454cb3a223b10b938b45af148bc0986de36f1923b"
+checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/src/concurrency/async-exercises/chat-async/Cargo.toml b/src/concurrency/async-exercises/chat-async/Cargo.toml
index daae8e7b..998662b9 100644
--- a/src/concurrency/async-exercises/chat-async/Cargo.toml
+++ b/src/concurrency/async-exercises/chat-async/Cargo.toml
@@ -6,5 +6,5 @@ edition = "2021"
 [dependencies]
 futures-util = { version = "0.3.30", features = ["sink"] }
 http = "1.1.0"
-tokio = { version = "1.37.0", features = ["full"] }
+tokio = { version = "1.38.0", features = ["full"] }
 tokio-websockets = { version = "0.8.3", features = ["client", "fastrand", "server", "sha1_smol"] }