diff --git a/pyproject.toml b/pyproject.toml
index f6390d1d..4dc5e597 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,6 +71,7 @@ check = [
   "types-PyYAML",
   "types-requests",
   "types-setuptools",
+  "distro; sys_platform=='darwin'",  # for type checking
 ]
 
 [project.scripts]