diff --git a/.github/workflows/pip-install.yml b/.github/workflows/pip-install.yml
index 8bcd13c..cc5c273 100644
--- a/.github/workflows/pip-install.yml
+++ b/.github/workflows/pip-install.yml
@@ -29,13 +29,12 @@ jobs:
 
       - name: Build
         run: |
-          python -m pip install -U pip pep517 twine setuptools_scm
+          python -m pip install -U pip pep517 twine setuptools_scm astropy
           python -m pep517.build .
 
       - 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__)"