diff --git a/requirements.txt b/requirements.txt
index c1119ca..395da60 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,3 +20,4 @@ six==1.12.0
 tqdm==4.31.1
 urllib3==1.26.18
 Werkzeug==3.0.1
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability