diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 129c93b6..5b13a34a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -71,7 +71,7 @@ jobs:
       - name: test
         run: cd ${{ matrix.project }} && zig build test
   x86_64-macos:
-    runs-on: macos-latest
+    runs-on: macos-12
     strategy:
       matrix:
         project: ['.', 'glfw']