diff --git a/requirements.txt b/requirements.txt
index e1e41f7..9b83e4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,6 +15,7 @@ MarkupSafe==1.1.1
 python-dateutil==2.8.1
 python-dotenv==0.13.0
 python-editor==1.0.4
+pytz==2020.1
 six==1.15.0
 SQLAlchemy==1.3.18
 typed-ast==1.4.1