diff --git a/requirements.txt b/requirements.txt
index b7fdc6d..4f07aaa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -89,6 +89,6 @@ urllib3==1.23
 virtualenv==16.1.0.dev0
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.3.1
 xkit==0.0.0