diff --git a/requirements.txt b/requirements.txt
index e8a6e10..e76f508 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 geocoder==1.38.1
 requests==2.27.1
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability