diff --git a/requirements.txt b/requirements.txt
index 66d866c..e3ee262 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -93,5 +93,5 @@ urllib3==1.25.6
 wasabi==0.2.2
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.4.2