diff --git a/requirements.txt b/requirements.txt
index d6fb146..573f65d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ mixer==7.2.2
 pytest==7.1.3
 pytest-django==4.5.2
 flake8==5.0.4
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability