diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4d9fc4c..cb28558 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -56,5 +56,8 @@
         with:
           cache: poetry
 
+      - name: Install dependencies
+        run: poetry install --no-interaction --no-root
+
       - name: Run test suite
         run: poetry run pytest atmosphere/tests/${{ matrix.type }}