diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 0c6d53a..fe387bc 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,3 +11,14 @@ jobs:
         with:
           poetry-version: "1.2.2"
       - run: poetry run pytest -m "not needs_data" tests
+
+  legacy-unit-test:
+    runs-on: ubuntu-latest
+    needs: [unit-test]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/install-poetry
+        with:
+          poetry-version: "1.2.2"
+      - run: poetry run pip install "pytorch-lightning<2.0.0"
+      - run: poetry run pytest -m "not needs_data" tests