diff --git a/Cargo.lock b/Cargo.lock
index 2dc47ee76..f084537c6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -45,9 +45,9 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.2"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15c4c2c83f81532e5845a733998b6971faca23490340a418e9b72a3ec9de12ea"
+checksum = "7079075b41f533b8c61d2a4d073c4676e1f8b249ff94a393b0595db304e0dd87"
 
 [[package]]
 name = "anstyle-parse"
diff --git a/tls_codec/Cargo.toml b/tls_codec/Cargo.toml
index 65631c133..07ccdae83 100644
--- a/tls_codec/Cargo.toml
+++ b/tls_codec/Cargo.toml
@@ -24,7 +24,7 @@ serde = { version = "1.0.184", features = ["derive"], optional = true }
 [dev-dependencies]
 clap = "=4.3.23"                                          # pinned to preserve MSRV
 clap_lex = "=0.5.0"                                       # pinned to preserve MSRV
-anstyle = "=1.0.2"                                        # pinned to preserve MSRV
+anstyle = "=1.0.4"                                        # pinned to preserve MSRV
 anstyle-parse = "=0.2.1"                                  # pinned to preserve MSRV
 criterion = { version = "0.5", default-features = false }
 regex = "1.8"