diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c28ab35..a3cbb32 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,14 +13,14 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-13]
         python-version: ["3.7", "3.10"]
-        exclude:  # Python < v3.8 does not support Apple Silicon ARM64.
-          - python-version: "3.7"
-            os: macos-latest
-        include:  # So run those legacy versions on Intel CPUs.
-          - python-version: "3.7"
-            os: macos-13
+        # exclude:  # Python < v3.8 does not support Apple Silicon ARM64.
+        #   - python-version: "3.7"
+        #     os: macos-latest
+        # include:  # So run those legacy versions on Intel CPUs.
+        #   - python-version: "3.7"
+        #     os: macos-13
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}