diff --git a/server/requirements.txt b/server/requirements.txt
index 71cd43e..8dece0d 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -14,4 +14,4 @@ python-socketio==1.7.4
 redis==2.10.3
 simplegeneric==0.8.1
 six==1.10.0
-Werkzeug==0.12.1
+Werkzeug==0.15.3