diff --git a/requirements.txt b/requirements.txt
index 18e4970f0..df39f17df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ wheel
 flask==1.0
 flask-session
 flask-socketio==3.3.2
-flask-helper=0.19
+flask-helper==0.19
 gunicorn==19.9
 gevent==1.3.3
 gevent-websocket==0.10.1