diff --git a/requirements.txt b/requirements.txt
index f444308..a763073 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -83,5 +83,5 @@ virtualenv==15.0.1
 vobject==0.9.4
 w3lib==1.17.0
 websocket-client==0.37.0
-Werkzeug==0.11.11
+Werkzeug==0.15.3
 zope.interface==4.4.1