diff --git a/Pipfile b/Pipfile
index 236a1ab2..ef405c1b 100644
--- a/Pipfile
+++ b/Pipfile
@@ -14,7 +14,7 @@ pylint = "~=3.1.0"
 pylint-quotes = "~=0.2.3"
 pytest = "~=8.0"
 pytest-cov = "~=4.1"
-python-dateutil = "~=2.8"
+python-dateutil = "~=2.9"
 tox = "~=4.12"
 types-python-dateutil = "~=2.8"