diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 07b269d..aa558b1 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -27,7 +27,7 @@ jobs:
     - name: Install dependencies
       run: |
         pip install pipenv
-        pipenv sync
+        pipenv sync --dev
     - name: Test with pytest
       run: |
         pipenv run pytest -cov=. -m dev