diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index 5e4b4bb..5e97c85 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -27,6 +27,7 @@ jobs:
              pip install -r requirements.txt
              pip install .
              sudo apt-get install libsndfile1-dev 
+             sudo apt-get install ffmpeg 
              pip install pytest