diff --git a/requirements.txt b/requirements.txt
index 7cbe27cd4..d5add3f3c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 dj-database-url==0.4.1
 Django==1.9.7
-gunicorn==19.6.0
+gunicorn==21.2.0
 psycopg2==2.6.2
 whitenoise==2.0.6
 requests==2.9.1