diff --git a/requirements.txt b/requirements.txt
index b6ecf47..53d5cab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,4 +49,4 @@ urllib3==1.21.1
 virtualenv==15.1.0
 wcwidth==0.1.7
 websocket-client==0.40.0
-Werkzeug==0.12.1
+Werkzeug==0.15.3