diff --git a/config/requirements.txt b/config/requirements.txt
index f849195e..c18e6dd5 100644
--- a/config/requirements.txt
+++ b/config/requirements.txt
@@ -1,5 +1,5 @@
 pyyaml
-pytz
+pytz==2016.10
 pillow
 markdown2>=2.3.0
 djangorestframework