diff --git a/requirements.txt b/requirements.txt
index f4731dc..e6ae042 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ pytest-playwright~=0.10.0
 pixelmatch~=0.4.0
 pillow~=13.0.0
 snakeviz~=2.2.2
-python-dateutil~=3.0.0
+python-dateutil~=4.0.0
 pydantic~=2.14.2
 sqlalchemy~=2.1.7
 azure-storage-blob~=12.31.1