diff --git a/valsketch/requirements.txt b/valsketch/requirements.txt
index 0589452..8664d3b 100644
--- a/valsketch/requirements.txt
+++ b/valsketch/requirements.txt
@@ -68,6 +68,6 @@ tornado==4.4.2
 traitlets==4.3.1
 URLObject==2.4.2
 wcwidth==0.1.7
-Werkzeug==0.15.3
+Werkzeug==2.2.3
 widgetsnbextension==1.2.6
 WTForms==2.1