diff --git a/requirements-dev.txt b/requirements-dev.txt
index e18fccc..05601c3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,3 +9,4 @@ mypy~=0.991
 
 pytest~=7.4
 coverage~=5.4
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability