diff --git a/requirements.txt b/requirements.txt
index ee13259..aefa6a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -76,6 +76,6 @@ traitlets==4.3.2
 ujson==1.35
 urllib3==1.22
 wcwidth==0.1.7
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 widgetsnbextension==3.0.6
 wrapt==1.10.11
\ No newline at end of file