diff --git a/.github/workflows/build-boards.yml b/.github/workflows/build-boards.yml
index 6fbc5b6a08f..9d334a1f974 100644
--- a/.github/workflows/build-boards.yml
+++ b/.github/workflows/build-boards.yml
@@ -39,7 +39,7 @@ jobs:
     - name: Set up python
       uses: actions/setup-python@v6
       with:
-        python-version: 3.x
+        python-version: ${{ inputs.port == 'zephyr-cp' && '3.13' || '3.x' }}
 
     - name: Set up port
       id: set-up-port