diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index a68f99425..2f1e9b5e9 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -8527,9 +8527,9 @@ dependencies = [
 
 [[package]]
 name = "serial_test"
-version = "3.3.1"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d0b343e184fc3b7bb44dff0705fffcf4b3756ba6aff420dddd8b24ca145e555"
+checksum = "911bd979bf1070a3f3aa7b691a3b3e9968f339ceeec89e08c280a8a22207a32f"
 dependencies = [
  "futures-executor",
  "futures-util",
@@ -8542,9 +8542,9 @@ dependencies = [
 
 [[package]]
 name = "serial_test_derive"
-version = "3.3.1"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f50427f258fb77356e4cd4aa0e87e2bd2c66dbcee41dc405282cae2bfc26c83"
+checksum = "0a7d91949b85b0d2fb687445e448b40d322b6b3e4af6b44a29b21d9a5f33e6d9"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/codex-rs/Cargo.toml b/codex-rs/Cargo.toml
index 01836cde0..ea00091c8 100644
--- a/codex-rs/Cargo.toml
+++ b/codex-rs/Cargo.toml
@@ -239,7 +239,7 @@ serde_json = "1"
 serde_path_to_error = "0.1.20"
 serde_with = "3.16"
 serde_yaml = "0.9"
-serial_test = "3.2.0"
+serial_test = "3.4.0"
 sha1 = "0.10.6"
 sha2 = "0.10"
 shlex = "1.3.0"