diff --git a/requirements-dev.txt b/requirements-dev.txt
index f45daaabd..711ac68f3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -29,4 +29,4 @@ types-cachetools==5.3.0.0
 types-filelock==3.2.7
 types-requests==2.28.11.15
 types-tabulate==0.9.0.1
-types-python-dateutil==2.8.19.8
+types-python-dateutil==2.8.19.9