diff --git a/requirements.txt b/requirements.txt
index 0e29859..4204e35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -91,6 +91,6 @@ urllib3==1.25.8
 visitor==0.1.3
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.2.1
 WTForms==2.2