diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9d93a24..4879f0e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,3 +7,4 @@ tenacity
 twine
 wheel
 backports.zoneinfo>=0.2.1; python_version < "3.9.0"
+pytz