diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3c75743380..2866ed4b85 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,6 +33,7 @@ jobs:
             numpy-version: '2.1'
             dependency-set: 'optional'
             os: 'macos-latest'
+          # https://github.com/zarr-developers/zarr-python/issues/2438
           # - python-version: '3.11'
           #   numpy-version: '1.25'
           #   dependency-set: 'optional'