diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ba587c8..dc4780c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -28,7 +28,7 @@ jobs:
           fail-fast: true
           matrix:
             python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.x']
-            os: [ubuntu-latest, macos-latest]
+            os: [ubuntu-latest, macos-13]
 
         steps:
         - uses: actions/checkout@v4