diff --git a/requirements.txt b/requirements.txt
index 09d044f..80b02ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,6 +87,6 @@ traitlets==4.3.2
 unityagents==0.4.0
 urllib3==1.24.1
 wcwidth==0.1.7
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.4.2
 wincertstore==0.2