diff --git a/dev-requirements.txt b/dev-requirements.txt
index 8f372a3..79b1bfd 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,4 +2,5 @@ pytest
 pytest-cov
 wheel
 setuptools
-black==22.1.0
\ No newline at end of file
+black==22.1.0
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file