diff --git a/.github/workflows/MacOS.yml b/.github/workflows/MacOS.yml
index f5d73ec9..900eec5f 100644
--- a/.github/workflows/MacOS.yml
+++ b/.github/workflows/MacOS.yml
@@ -35,7 +35,7 @@ jobs:
          #  CA: "ZeroSSL RSA Domain Secure Site CA"
          #  CA_EMAIL: "githubtest@acme.sh"
          #  TEST_PREFERRED_CHAIN: ""
-    runs-on: macos-latest
+    runs-on: mac
     env:
       TEST_LOCAL: 1
       TEST_ACME_Server: ${{ matrix.TEST_ACME_Server }}