diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6ed3757..2af80cb 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,6 +16,9 @@ jobs:
       matrix:
         ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
         os: [ 'ubuntu-latest', 'macos-latest', 'windows-latest' ]
+        exclude:
+          - { os: macos-latest, ruby: '2.5' }
+
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4