diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 762ed92..cbc62db 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,6 +24,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install -r requirements.txt
+          pip install PyYAML
           python setup.py develop
           pip install pytest
           # pip install -r requirements.txt