diff --git a/requirements.txt b/requirements.txt
index 71ac4cb..2ae5bf7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -79,7 +79,7 @@ traitlets==4.3.2
 urllib3==1.23
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.4.2
 xgboost==0.81
 yarg==0.1.9