diff --git a/requirements/base.txt b/requirements/base.txt
index 783f710dc..d6f2ba134 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,5 +1,5 @@
 bleach==2.1.4
-Django==1.11.20
+Django==1.11.21 # pyup: <2.0
 django-allauth==0.35.0
 django-autoslug==1.9.3
 django-background-tasks==1.1.13