diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 76e0cb34..e7725a9c 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -34,18 +34,18 @@ jobs:
         with:
           python-version: '3.11'
 
-      - name: Build distribution
+      - name: Build source distribution
         run: |
           pip install build==1.0.3
-          python -m build --outdir dist/
+          python -m build --sdist --outdir dist/
 
-      - name: Test distribution
+      - name: Test source distribution
         if: github.event_name == 'release' || inputs.test_sdist
         run: |
           VENV="$(mktemp --dry-run)"
           python -m venv "${VENV}"
           source "${VENV}/bin/activate"
-          pip install dist/*.whl
+          pip install dist/*.tar.gz
           pip install pytest-xdist
           pytest -n auto -rax --pyargs meltingpot
           deactivate