diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d2acecd..e48ae56 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -32,6 +32,6 @@ jobs:
         with:
           poetry-version: "1.8.3"
       - name: Install dependencies
-        run: poetry install
+        run: poetry install --with=dev
       - name: Run pytest
         run: pytest