diff --git a/requirements.txt b/requirements.txt
index 7a9ee2b4..b5a9db73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ typing_extensions>=4.7
 flask<=2.1.3 # BSD 3-clause
 flask-caching<=2.0.1 # BSD 3-clause
 flask_cors==3.0.10
-werkzeug==2.2.3 # needed by flask 2.1 (which is needed by moto) (later versions of werkzeug hang tests)
+werkzeug==2.3.8 # needed by flask 2.1 (which is needed by moto) (later versions of werkzeug hang tests)
 uvicorn<=0.18.2 # BSD 3-clause
 python-gitlab==3.13.0
 tosca>=0.0.8