diff --git a/.github/workflows/nightly-real-model.yml b/.github/workflows/nightly-real-model.yml
index e725cb3..74901c9 100644
--- a/.github/workflows/nightly-real-model.yml
+++ b/.github/workflows/nightly-real-model.yml
@@ -23,7 +23,9 @@ jobs:
       - name: Install (semantic extra + training deps)
         run: |
           python -m pip install -U pip
-          pip install -e ".[semantic,bench,cli]" onnx pytest pytest-cov
+          # Pytest imports every collected test module before applying -k, so
+          # install the repository's test dependencies as well as the runtime.
+          pip install -e ".[dev,semantic]" onnx
       - name: Build dev artifacts (synthetic-only, offline)
         run: make training-dev-artifacts PY=python
       - name: Real-model runtime smoke (registry + calibration artifact)
diff --git a/tests/test_phase5_backcompat.py b/tests/test_phase5_backcompat.py
index ed50fd9..5b5a0f4 100644
--- a/tests/test_phase5_backcompat.py
+++ b/tests/test_phase5_backcompat.py
@@ -109,6 +109,13 @@ def test_pr_ci_test_job_excludes_online_and_large_markers():
     assert 'pytest -m "not online and not large"' in text
 
 
+def test_nightly_real_model_installs_test_dependencies():
+    text = (REPO_ROOT / ".github" / "workflows" / "nightly-real-model.yml").read_text(
+        encoding="utf-8"
+    )
+    assert 'pip install -e ".[dev,semantic]" onnx' in text
+
+
 def test_wheel_size_workflow_checks_onnx_and_training_paths():
     text = (REPO_ROOT / ".github" / "workflows" / "wheel-size.yml").read_text(encoding="utf-8")
     assert ".onnx" in text