diff --git a/requirements.txt b/requirements.txt
index b927ad2..fd2fef1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ MarkupSafe==0.23
 python-engineio
 python-socketio
 six==1.9.0
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 eventlet