diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index a8b57ca..8a499de 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -22,7 +22,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        pip install --upgrade -e .[test]
+        pip install --upgrade -e .[contrib,test]
         pip install flake8
     - name: Lint with flake8
       run: |