diff --git a/.github/workflows/downstream_tests.yml b/.github/workflows/downstream_tests.yml
index 12f7f95b7a..d84129d79e 100644
--- a/.github/workflows/downstream_tests.yml
+++ b/.github/workflows/downstream_tests.yml
@@ -113,22 +113,18 @@ jobs:
       - name: install-basics
         run: uv pip install --upgrade tox virtualenv setuptools --system
       - name: install-shiny-dev
+        env:
+          UV_SYSTEM_PYTHON: 1
         run: |
             cd py-shiny
-            uv pip install -e ".[dev,test]" --system
+            make narwhals-install-shiny
       - name: install-narwhals-dev
         run: |
             uv pip uninstall narwhals --system
             uv pip install -e . --system
       - name: show-deps
         run: uv pip freeze
-      - name: Run pytest
-        run: |
-            cd py-shiny
-            python tests/pytest/asyncio_prevent.py
-            pytest
-      - name: Run mypy
+      - name: Run `make narwhals-test-integration`
         run: |
             cd py-shiny
-            uv pip install mypy --system
-            mypy shiny
+            make narwhals-test-integration