diff --git a/.kiro/specs/xce-harness-component/tasks.md b/.kiro/specs/xce-harness-component/tasks.md
index 849ccdab..f37facd1 100644
--- a/.kiro/specs/xce-harness-component/tasks.md
+++ b/.kiro/specs/xce-harness-component/tasks.md
@@ -80,7 +80,7 @@
   - Observable: no behavioral difference is found; every previously-passing scenario in that coverage still passes unchanged
   - _Requirements: 4.1, 4.2, 4.3_
   - _Depends: 3.1_
-- [ ] 4.2 Verify the harness_unit_test build-order dependency actually holds
+- [x] 4.2 Verify the harness_unit_test build-order dependency actually holds
   - Deliberately remove the built `xce_test` binary, run `harness_unit_test`, and confirm `test_test_cli.c`/`test_xcetest_process_entry.c` fail loudly rather than silently pass; rebuild normally and confirm the suite passes
   - Observable: the deliberate-removal run reports a clear failure from the two pty-spawning tests; the normal run reports the full suite green
   - _Requirements: 3.1, 3.2_