diff --git a/requirements.txt b/requirements.txt
index f68e78f9a56da8a4d06424c201af1c7df4f4c6d0..b0483a78b2342c7359a210a0a0e4e16bdc7ed787 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ Flask-SocketIO
 Flask-SQLAlchemy
 Flask-Table
 Flask-WTF
+gunicorn
 jsonpatch
 psycopg2
 redis