diff --git a/requirements.txt b/requirements.txt
index ecbb2d1..b70291f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -84,5 +84,5 @@ visdom==0.1.8.8
 wcwidth==0.1.7
 webencodings==0.5.1
 websocket-client==0.54.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.4.2