diff --git a/app/requirements.txt b/app/requirements.txt
index 6f8499c..a3d1853 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -24,5 +24,5 @@ six==1.10.0
 socketIO-client==0.7.0
 tornado==4.4.1
 websocket-client==0.37.0
-Werkzeug==0.11.11
+Werkzeug==0.15.3