diff --git a/edinburgh_materials/flask-demo/requirements.txt b/edinburgh_materials/flask-demo/requirements.txt
index 227af85..df36e30 100644
--- a/edinburgh_materials/flask-demo/requirements.txt
+++ b/edinburgh_materials/flask-demo/requirements.txt
@@ -31,4 +31,4 @@ SQLAlchemy==1.3.5
 traitlets==4.3.2
 urllib3==1.26.5
 wcwidth==0.1.7
-Werkzeug==2.2.3
+Werkzeug==3.0.6