diff --git a/requirements.txt b/requirements.txt
index ce96d61..d9cdf72 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -99,6 +99,6 @@ update==0.0.1
 urllib3==1.22
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.4.2
 wrapt==1.11.1