diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8da617ba..062346c5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
  test:
   strategy:
    matrix:
-    os: [ macos-latest, ubuntu-latest, windows-latest ]
+    os: [ macos-13, ubuntu-latest, windows-latest ]
   runs-on: ${{ matrix.os }}
   steps:
   - name: Checkout