diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 23c7a78d9..a1b41b7c7 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -687,9 +687,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.3.19"
+version = "4.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fd304a20bff958a57f04c4e96a2e7594cc4490a0e809cbd48bb6437edaa452d"
+checksum = "c27cdf28c0f604ba3f512b0c9a409f8de8513e4816705deb0498b627e7c3a3fd"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -698,9 +698,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.3.19"
+version = "4.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01c6a3f08f1fe5662a35cfe393aec09c4df95f60ee93b7556505260f75eee9e1"
+checksum = "08a9f1ab5e9f01a9b81f202e8562eb9a10de70abf9eaeac1be465c28b75aa4aa"
 dependencies = [
  "anstream",
  "anstyle",
diff --git a/rust/relay/Cargo.toml b/rust/relay/Cargo.toml
index c15a4c431..04018adf6 100644
--- a/rust/relay/Cargo.toml
+++ b/rust/relay/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.72"
-clap = { version = "4.3.19", features = ["derive", "env"] }
+clap = { version = "4.3.21", features = ["derive", "env"] }
 bytecodec = "0.4.15"
 futures = "0.3.28"
 hex = "0.4.3"