diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7df90cd..5ce00b4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,6 +21,9 @@ jobs:
             os: "ubuntu-latest"
             TEST_SYMLINK: yes
             rubyopt: "--enable-frozen-string-literal"
+        exclude:
+          - ruby-version: "2.5"
+            os: "macos-latest"
     runs-on: ${{ matrix.os }}
     env:
       TEST_SYMLINK: ${{ matrix.TEST_SYMLINK }}