diff --git a/.github/workflows/github-actions-demo.yml b/.github/workflows/github-actions-demo.yml
index 9979907d..ff296263 100644
--- a/.github/workflows/github-actions-demo.yml
+++ b/.github/workflows/github-actions-demo.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-14]
-        python_version: [3.11]
+        python_version: [3.8, 3.9, 3.10, 3.11, 3.12]
     runs-on: ${{ matrix.os }}
     env:
       PACKAGE_NAME: cmor