diff --git a/tests/apps/python-flask/requirements.txt b/tests/apps/python-flask/requirements.txt
index 925005143..a59ca7c70 100644
--- a/tests/apps/python-flask/requirements.txt
+++ b/tests/apps/python-flask/requirements.txt
@@ -1,4 +1,4 @@
-Flask==2.0.3
+Flask==2.1.1
 Jinja2==3.0.3
 Werkzeug==2.0.3
 gunicorn==20.1.0