diff --git a/Cargo.lock b/Cargo.lock
index 2dc47ee76..6b59a78f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -274,15 +274,21 @@ checksum = "f8ce6fffb678c9b80a70b6b6de0aad31df727623a70fd9a842c30cd573e2fa98"
 dependencies = [
  "anstream",
  "anstyle",
- "clap_lex",
+ "clap_lex 0.5.1",
  "strsim",
 ]
 
 [[package]]
 name = "clap_lex"
-version = "0.5.0"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd7cc57abe963c6d3b9d8be5b06ba7c8957a930305ca90304f24ef040aa6f961"
+
+[[package]]
+name = "clap_lex"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2da6da31387c7e4ef160ffab6d5e7f00c42626fe39aea70a7b0f1773f7dd6c1b"
+checksum = "702fc72eb24e5a1e48ce58027a675bc24edd52096d5397d4aea7c6dd9eca0bd1"
 
 [[package]]
 name = "cmpv2"
@@ -1595,7 +1601,7 @@ dependencies = [
  "anstyle-parse",
  "arbitrary",
  "clap",
- "clap_lex",
+ "clap_lex 0.6.0",
  "criterion",
  "regex",
  "serde",
diff --git a/tls_codec/Cargo.toml b/tls_codec/Cargo.toml
index 65631c133..5cf950486 100644
--- a/tls_codec/Cargo.toml
+++ b/tls_codec/Cargo.toml
@@ -23,7 +23,7 @@ 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
+clap_lex = "=0.6.0"                                       # pinned to preserve MSRV
 anstyle = "=1.0.2"                                        # pinned to preserve MSRV
 anstyle-parse = "=0.2.1"                                  # pinned to preserve MSRV
 criterion = { version = "0.5", default-features = false }