diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 25d32e703..05bd78454 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Unit tests
         run: |
           pip install pytest
-          pytest --collect-only --cache-clear -vs tests
+          pytest --collect-only --cache-clear --trace -vs tests/hopp
       - name: Lint with flake8
         run: |
           # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide