diff --git a/specifier-prompt.md b/specifier-prompt.md
index 650458a..b76faa8 100644
--- a/specifier-prompt.md
+++ b/specifier-prompt.md
@@ -321,5 +321,5 @@ At the end of each session, update this file:
 - Note the current `master` HEAD commit.
 - State the next feature to work on.
 
-Current `master` HEAD: `dd59741` (post-heights-index merged from architect; lint fix applied).
+Current `master` HEAD: `3433516` (post-heights-index merged and backfill utility added).
 Next feature: **ask the user** — `post-heights-index` is complete and merged.