diff --git a/tests/apps/python-flask/requirements.txt b/tests/apps/python-flask/requirements.txt
index 87639bed9..37292ef5c 100644
--- a/tests/apps/python-flask/requirements.txt
+++ b/tests/apps/python-flask/requirements.txt
@@ -1,5 +1,5 @@
 Flask==3.1.3
 Jinja2==3.1.6
-Werkzeug==3.1.8
+Werkzeug==3.1.9
 gunicorn==26.2.0