diff --git a/requirements/requirements_tests.txt b/requirements/requirements_tests.txt
index ae3c7f7..babb8b7 100644
--- a/requirements/requirements_tests.txt
+++ b/requirements/requirements_tests.txt
@@ -4,3 +4,4 @@ tox
 
 #-r requirements_dev.txt
 #warg
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability