diff --git a/requirements.txt b/requirements.txt
index 8ae5375..d4dc446 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 google-auth==1.12.0
 google-api-python-client==1.8.0
 icalendar==4.0.5
-pytz==2019.3
+pytz==2020.1
 PyYAML==5.3.1