diff --git a/.github/workflows/ci_testing.yml b/.github/workflows/ci_testing.yml
index 32048ddf3fa90ddd5e40dd177b15ea611368f080..07e05194aa4b6bb28ef8835843b2a216dbdd8fef 100644
--- a/.github/workflows/ci_testing.yml
+++ b/.github/workflows/ci_testing.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-       os: [ubuntu-latest, macos-latest]
+       os: [ubuntu-latest, macos-13]
        python-version: ["3.9", "3.10", "3.11"]
     defaults:
       run: