diff --git a/.github/workflows/blank.yml b/.github/workflows/blank.yml
index 629bba6a9..4d9b69854 100644
--- a/.github/workflows/blank.yml
+++ b/.github/workflows/blank.yml
@@ -44,14 +44,14 @@ jobs:
 
       - run: rm -fr runtime32
         if: ${{ matrix.os == 'macos-latest' }}
-      - run: opam exec -- dune b
       - run: opam exec -- dune b src runtime runtime32 stdlib tutorial
         if: ${{ matrix.os != 'macos-latest' }}
       - run: opam exec -- dune b src runtime stdlib tutorial
         if: ${{ matrix.os == 'macos-latest' }}
       - run: opam exec -- dune b @install --profile=release
       - run: opam exec -- dune    install --profile=release
-      - run: opam exec -- make regression-all
+      - run: opam exec -- dune test regression stdlib/regression regression_long
+      # - run: opam exec -- make regression-all
 
       # works
       # - run: rm -fr runtime32