diff --git a/.github/workflows/pip-install.yml b/.github/workflows/pip-install.yml
index ddfec3a..8bcd13c 100644
--- a/.github/workflows/pip-install.yml
+++ b/.github/workflows/pip-install.yml
@@ -35,6 +35,7 @@ jobs:
       - name: Test the sdist
         run: |
           python -m venv venv-sdist
+          python -m pip install astropy
           venv-sdist/bin/python -m pip install dist/vspace*.tar.gz
           venv-sdist/bin/python -c "import vspace; print(vspace.__version__)"