diff --git a/build-requirements.txt b/build-requirements.txt
index 46dc3f7e..58257590 100644
--- a/build-requirements.txt
+++ b/build-requirements.txt
@@ -5,3 +5,4 @@ pylint
 diff_cover
 pytest>=4.6.5
 pluggy>=0.7
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability