diff --git a/requirements.txt b/requirements.txt
index 8a382edd..5072eb57 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ croniter
 Django==2.1
 django_compressor==2.1
 psycopg2==2.7.5
-pytz==2016.7
+pytz==2018.5
 requests==2.19.1