diff --git a/requirements.txt b/requirements.txt
index bca031f..f48cdc2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,6 +74,6 @@ urllib3==1.24.1
 visitor==0.1.3
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.15.2
+Werkzeug==0.15.3
 widgetsnbextension==3.4.2
 WTForms==2.2.1