diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 59dff2d31..2ef609899 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -168,6 +168,7 @@ jobs:
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
         with:
           dependency_type: pre
+          python_version: "3.14"
       - name: Run the tests
         run: |
           export NBFORMAT_VALIDATOR=jsonschema