diff --git a/pyproject.toml b/pyproject.toml
index 942a8f9..eaa0511 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,7 +78,7 @@ tests = [
 ]
 type_check = [
     "mypy==1.11.2",
-    "types-python-dateutil==2.9.0.20240906",
+    "types-python-dateutil==2.9.0.20241003",
     "types-pytz==2024.2.0.20241003"
 ]