diff --git a/update-visualizer/requirements.txt b/update-visualizer/requirements.txt
index d51b122..5dbe3ee 100644
--- a/update-visualizer/requirements.txt
+++ b/update-visualizer/requirements.txt
@@ -1,2 +1,3 @@
 flask
 kafka
+werkzeug>=2.2.3 # not directly required, pinned by Snyk to avoid a vulnerability