diff --git a/test-requirements.txt b/test-requirements.txt
index 439ad14..7167208 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,4 @@
 mock==3.0.5
 requests-mock==1.7.0
 pytest==7.1.3
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability