diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index b48d69708c67..67f674437838 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -18,12 +18,15 @@ jobs:
           - python-version: "3.6"
             toxenv: lowest-supported
             experimental: false
+          - python-version: "3.13-dev"
+            toxenv: py3
+            experimental: true
     name: unittest / ${{ matrix.toxenv }} / python ${{matrix.python-version}}
     runs-on: ubuntu-20.04
     continue-on-error: ${{ matrix.experimental }}
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Fetch all tags for tools/read-version
           fetch-depth: 0
@@ -34,6 +37,4 @@ jobs:
       - name: Install tox
         run: pip install tox
       - name: Run unittest
-        env:
-          PYTEST_ADDOPTS: -v
         run: tox -e ${{ matrix.toxenv }}