diff --git a/.doc/ops/short-term/2026-09-22-docgov-vocabulary-convergence.md b/.doc/ops/short-term/2026-09-22-docgov-vocabulary-convergence.md
index eb8bd788..1a8862ff 100644
--- a/.doc/ops/short-term/2026-09-22-docgov-vocabulary-convergence.md
+++ b/.doc/ops/short-term/2026-09-22-docgov-vocabulary-convergence.md
@@ -24,7 +24,7 @@ write_scope:
   - ".doc/system-design/module-boundaries.yaml"
   - ".doc/ops/short-term/2026-09-22-docgov-vocabulary-convergence.md"
 allowed_environments: []
-head_sha: ""
+head_sha: "381b56dafc4a841d124f594189983c75851faffc"
 mutex: docgov
 review_state: pending
 integration_state: pending