diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 2725caf..ccbf474 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -29,14 +29,20 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Build
       run: |
-        python -m pip install setuptools wheel nose mpi4py numpy cython build
+        python -m pip install setuptools wheel nose mpi4py numpy cython build runtests
         python -m build
+    - name: Install
+      run: |
+        python -m pip install dist/pfft-python*.whl
     - name: Unit tests
       run: |
-        pip install runtests
         python ./runtests.py --mpirun="mpirun -np 4"
+    - name: Roundtrips
+      run: |
         mpirun -n 1 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 1 1 -Nmesh 13 15 16
         mpirun -n 2 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 2 1 -Nproc 1 2 -Nmesh 13 15 16
         mpirun -n 4 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 2 2 -Nmesh 13 15 16
         mpirun -n 4 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 2 2 -Nmesh 13 15
+    - name: Version
+      run: |
         bash check_tag.sh pfft/version.py