diff --git a/yuqei-infra/tests/test_rc06_release_trust_bootstrap.py b/yuqei-infra/tests/test_rc06_release_trust_bootstrap.py
index 35a4c5e8..2453bb99 100644
--- a/yuqei-infra/tests/test_rc06_release_trust_bootstrap.py
+++ b/yuqei-infra/tests/test_rc06_release_trust_bootstrap.py
@@ -1186,28 +1186,7 @@ def test_pin_apply_rolls_back_completed_files_when_later_replace_fails(
     tmp_path: Path,
     monkeypatch: pytest.MonkeyPatch,
 ) -> None:
-    state, _result, _keys = _initialize(tmp_path)
-    reviewer_file = tmp_path / "reviewer-registration.json"
-    _reviewer_registration(reviewer_file)
-    recovery = authority.build_recovery_keyrings(
-        state,
-        reviewer_file,
-        epoch=1,
-        unprotect=_unprotect,
-        now=datetime(2026, 9, 27, 2, 0, tzinfo=UTC),
-    )
-    repo = _copy_pin_sources(tmp_path)
-    online_registration_file = tmp_path / "online-service-registration.json"
-    _online_service_registration(online_registration_file)
-    plan = authority.plan_pin_updates(
-        repo,
-        state,
-        Path(recovery["directory"]),
-        epoch=1,
-        unprotect=_unprotect,
-        online_service_registration_file=online_registration_file,
-        online_environment_ids=("isolated-uat-fixture",),
-    )
+    _, _, plan = _pin_plan_fixture(tmp_path)
     real_replace = authority._write_bound_source_replacement
     calls = 0
 
@@ -1221,6 +1200,7 @@ def test_pin_apply_rolls_back_completed_files_when_later_replace_fails(
     monkeypatch.setattr(authority, "_write_bound_source_replacement", fail_second)
     with pytest.raises(authority.AuthorityError, match="transaction failed"):
         authority.apply_pin_plan(plan)
+    assert calls >= 2
     assert all(change.path.read_bytes() == change.original for change in plan.changes)