diff --git a/requirements.txt b/requirements.txt
index cb552da..9b5d063 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 Faker >= 0.8.11
 jsonschema >= 2.6.0
 rstr >= 2.2.6
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability