diff --git a/.github/actions/create-soundcard/action.yaml b/.github/actions/create-soundcard/action.yaml
index 62195c0..8a09216 100644
--- a/.github/actions/create-soundcard/action.yaml
+++ b/.github/actions/create-soundcard/action.yaml
@@ -21,6 +21,7 @@ runs:
       if: ${{ runner.os == 'macOS' }}
       shell: bash
       run: |
+        set -exo pipefail
         brew install blackhole-2ch switchaudio-osx
         SwitchAudioSource -s "BlackHole 2ch" -t input
         SwitchAudioSource -s "BlackHole 2ch" -t output
diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index 9200ae2..ccacbaa 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -32,6 +32,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - uses: astral-sh/setup-uv@v4
       - run: uv pip install --quiet --system .[test]
+      - run: python -m sounddevice
       - run: stimuli sys-info --developer
       - run: pytest stimuli --cov=stimuli --cov-report=xml --cov-config=pyproject.toml
       - uses: codecov/codecov-action@v5