diff --git a/dependencies/python/cfn-lint.txt b/dependencies/python/cfn-lint.txt
index 87d481d648e..e85939d55c0 100644
--- a/dependencies/python/cfn-lint.txt
+++ b/dependencies/python/cfn-lint.txt
@@ -13,7 +13,7 @@ junit-xml==1.9
 networkx==2.8
 pbr==5.8.1
 pyrsistent==0.18.1
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
 PyYAML==6.0
 s3transfer==0.5.2
 sarif-om==1.0.4