diff --git a/appengine/standard/flask/tutorial/requirements.txt b/appengine/standard/flask/tutorial/requirements.txt
index c561978ab07..cb6dc84e176 100644
--- a/appengine/standard/flask/tutorial/requirements.txt
+++ b/appengine/standard/flask/tutorial/requirements.txt
@@ -1,2 +1,2 @@
 Flask==1.1.2
-Werkzeug==1.0.1
+Werkzeug==1.0.1; python_version < '3.0'