diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c546782..08c313a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        OS: ["ubuntu-latest", "macos-latest", "windows-latest"]
+        OS: ["ubuntu-latest", "macos-12", "windows-latest"]
     steps:
     - uses: actions/checkout@v4
       with: