diff --git a/tests/apps/python-flask/requirements.txt b/tests/apps/python-flask/requirements.txt
index e2eddd3f0..36e1075b0 100644
--- a/tests/apps/python-flask/requirements.txt
+++ b/tests/apps/python-flask/requirements.txt
@@ -1,5 +1,5 @@
 Flask==1.1.1
 Jinja2==2.10.3
-Werkzeug==0.15.6
+Werkzeug==0.16.0
 gunicorn==19.9.0