diff --git a/test_reqs.txt b/test_reqs.txt
index c3f05c9..4e2f148 100644
--- a/test_reqs.txt
+++ b/test_reqs.txt
@@ -15,7 +15,7 @@ pycodestyle==2.11.1
 flake8==7.0.0
 pep8==1.7.1
 pyflakes==3.2.0
-pytz==2023.3.post1
+pytz==2023.4
 configparser==6.0.0
 zipp==3.17.0
 importlib-metadata<7.1 # for flake8