diff --git a/requirements.txt b/requirements.txt
index 2122409..522858c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ python-engineio==3.2.3
 python-socketio==3.1.1
 pytz==2018.7
 six==1.12.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3