diff --git a/requirements.txt b/requirements.txt
index b9a7f10..a5ff5e5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,5 +74,5 @@ tqdm==4.15.0
 traitlets==4.3.2
 urllib3==1.22
 wcwidth==0.1.7
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 widgetsnbextension==2.0.0