diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index edd2d22..e2a1288 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -59,6 +59,7 @@ jobs:
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
+        pip install -r requirements-dev.txt
         pip install -e .
 
     - name: Run tests