diff --git a/requirements.txt b/requirements.txt
index 621dee9..92216c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,4 +19,4 @@ python-engineio==1.7.0
 python-socketio==1.7.7
 redis==2.10.5
 six==1.10.0
-Werkzeug==0.12.2
+Werkzeug==0.15.5