diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 1f402bd..cfb28a1 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install .
+        pip install .[develop]
     - name: Test with pytest
       run: |
         python setup.py test