diff --git a/requirements.txt b/requirements.txt
index 0e625a1..ef5d590 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,6 +9,6 @@ munch >=2.0.0
 gevent >=1.0
 isodate >=0.4.4
 requests >=2.23.0
-pytz >=2011k
+pytz
 httplib2
 lxml