diff --git a/backend/requirements.txt b/backend/requirements.txt
index a44eaed..9b9b9c4 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,2 +1,3 @@
 boto3
 Flask
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability