diff --git a/specs/027-dataset-llm-orchestration/tasks.md b/specs/027-dataset-llm-orchestration/tasks.md
index 38a55504..9a21f755 100644
--- a/specs/027-dataset-llm-orchestration/tasks.md
+++ b/specs/027-dataset-llm-orchestration/tasks.md
@@ -81,12 +81,12 @@
 
 ## Final Phase: Polish & Security
 
-- [ ] T038 Implement `SessionEvent` logger and persistence logic in `backend/src/services/dataset_review/event_logger.py`
-- [ ] T039 Implement automatic version propagation logic for updated `SemanticSource` entities
-- [ ] T040 Add batch approval API and UI actions for mapping/semantics
-- [ ] T041 Add integration tests for Superset version compatibility matrix in `backend/tests/services/dataset_review/test_superset_matrix.py`
-- [ ] T042 Final audit of RBAC enforcement across all session-mutation endpoints
-- [ ] T043 Verify i18n coverage for all user-facing strings in `frontend/src/lib/i18n/`
+- [X] T038 Implement `SessionEvent` logger and persistence logic in `backend/src/services/dataset_review/event_logger.py`
+- [X] T039 Implement automatic version propagation logic for updated `SemanticSource` entities
+- [X] T040 Add batch approval API and UI actions for mapping/semantics
+- [X] T041 Add integration tests for Superset version compatibility matrix in `backend/tests/services/dataset_review/test_superset_matrix.py`
+- [X] T042 Final audit of RBAC enforcement across all session-mutation endpoints
+- [X] T043 Verify i18n coverage for all user-facing strings in `frontend/src/lib/i18n/`
 
 ---