diff --git a/tests/requirements/base.txt b/tests/requirements/base.txt
index 89bd8230b2..0f439f5919 100644
--- a/tests/requirements/base.txt
+++ b/tests/requirements/base.txt
@@ -2,5 +2,5 @@ bcrypt
 docutils
 Pillow
 PyYAML
-pytz
+pytz > dev
 selenium