diff --git a/requirements.txt b/requirements.txt
index c655a14..f0cc28b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,3 +10,4 @@ MarkupSafe==2.1.3
 SQLAlchemy==2.0.19
 typing_extensions==4.7.1
 Werkzeug==2.3.6
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability