diff --git a/demo-server/requirements.txt b/demo-server/requirements.txt
index 4c7c551..89f984d 100644
--- a/demo-server/requirements.txt
+++ b/demo-server/requirements.txt
@@ -1,4 +1,4 @@
 connexion == 1.1.15
-Werkzeug==0.15.6
+Werkzeug==2.2.3
 python_dateutil == 2.6.0
 setuptools >= 21.0.0