diff --git a/.github/workflows/test_upb.yml b/.github/workflows/test_upb.yml
index 3171be1d6a1ad..8fe4fb9c21300 100644
--- a/.github/workflows/test_upb.yml
+++ b/.github/workflows/test_upb.yml
@@ -169,13 +169,13 @@ jobs:
           # supported Python versions and assume this gives us sufficient test
           # coverage.
           - { os: ubuntu-latest, python-version: "3.8", architecture: x64, type: 'binary' }
-          - { os: macos-12, python-version: "3.8", architecture: x64, type: 'binary' }
+          - { os: macos-13, python-version: "3.8", architecture: x64, type: 'binary' }
           - { os: ubuntu-latest, python-version: "3.11", architecture: x64, type: 'binary' }
-          - { os: macos-12, python-version: "3.11", architecture: x64, type: 'binary' }
+          - { os: macos-13, python-version: "3.11", architecture: x64, type: 'binary' }
           - { os: ubuntu-latest, python-version: "3.8", architecture: x64, type: 'source' }
-          - { os: macos-12, python-version: "3.8", architecture: x64, type: 'source' }
+          - { os: macos-13, python-version: "3.8", architecture: x64, type: 'source' }
           - { os: ubuntu-latest, python-version: "3.11", architecture: x64, type: 'source' }
-          - { os: macos-12, python-version: "3.11", architecture: x64, type: 'source' }
+          - { os: macos-13, python-version: "3.11", architecture: x64, type: 'source' }
 
           # Windows uses the full API up until Python 3.10, so each of these
           # jobs tests a distinct binary wheel.