diff --git a/requirements-dev.txt b/requirements-dev.txt
index 87d3951..2f790f6 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -83,3 +83,4 @@ wheel==0.46.2
 # The following packages are considered to be unsafe in a requirements file:
 # pip
 # setuptools
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability