diff --git a/requirements.txt b/requirements.txt
index 8d01b5a..4137f9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ jmespath==1.0.1
 mccabe==0.7.0
 pycodestyle==2.9.1
 pyflakes==3.0.1
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
 PyYAML==6.0
 s3transfer==0.6.0
 schema==0.7.5