diff --git a/flask/flask_multi-route/requirements.txt b/flask/flask_multi-route/requirements.txt
index 1b9934f..a641b3a 100644
--- a/flask/flask_multi-route/requirements.txt
+++ b/flask/flask_multi-route/requirements.txt
@@ -8,4 +8,4 @@ MarkupSafe==1.1.1
 pycodestyle==2.6.0
 python-dotenv==0.14.0
 toml==0.10.1
-Werkzeug==1.0.1
+Werkzeug==2.2.3