diff --git a/requirements-dev.txt b/requirements-dev.txt
index 51f88d31..b667f65b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -11,3 +11,4 @@ setuptools
 sphinx==7.2.6
 sphinx_rtd_theme==1.3.0
 tox==4.11.3
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability