diff --git a/builders/testdata/python/gunicorn_present/requirements.txt b/builders/testdata/python/gunicorn_present/requirements.txt
index ac9b157..d402415 100644
--- a/builders/testdata/python/gunicorn_present/requirements.txt
+++ b/builders/testdata/python/gunicorn_present/requirements.txt
@@ -1,2 +1,3 @@
 flask==1.1.1
 gunicorn==19.3.0
+werkzeug>=3.1.4 # not directly required, pinned by Snyk to avoid a vulnerability