diff --git a/requirements.txt b/requirements.txt
index 915e257..4711f4f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,6 +14,7 @@ django-epiceditor
 # Heroku
 dj-database-url
 gunicorn
+gevent
 psycopg2
 django-storages
 boto