diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index b4be2581..37cb8436 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -203,13 +203,15 @@ jobs:
       - name: Install build dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install build
+          python -m pip install build pytest
 
-      - name: Build SDist
+      - name: Build SDist & test sdist
         env:
           LDFLAGS: "-fopenmp"
         run: |
           python -m build --sdist --outdir dist/
+          pip install dist/*.tar.gz -v
+          pytest -s tests
         working-directory: ./quaddtype
 
       - name: Upload SDist artifact