diff --git a/requirements-dev.txt b/requirements-dev.txt
index 10c58e80..60dd97b6 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,7 +9,7 @@ Sphinx~=3.5.1
 
 mypy~=0.961
 types-requests~=2.28.2
-types-python-dateutil~=2.8.18
+types-python-dateutil~=2.8.19
 flake8~=4.0.1
 black~=22.6.0
 codespell~=2.1.0