diff --git a/requirements.txt b/requirements.txt
index a15fb80..7b51157 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 Django>=1.8,<1.9
 django-extensions==1.6.1
 djangorestframework==3.3.3
+gunicorn==19.4.5
 mysqlclient==1.3.7
 python-dateutil==2.5.1
 py-trello==0.4.3