diff --git a/pyproject.toml b/pyproject.toml
index d767cfa..4bdd406 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ pytest = ">=8.3.5"
 pytest-cov = ">=5.0.0"
 tox = ">=4.25.0"
 flake8 = ">=5.0.4"
-types-python-dateutil = ">= 2.8.19.14"
+types-python-dateutil = ">=2.9.0.20241206"
 mypy = ">=1.14.1"