diff --git a/db/docs/batched_background_migrations/backfill_merge_request_predictions_project_id.yml b/db/docs/batched_background_migrations/backfill_merge_request_predictions_project_id.yml
index 7d2c0090655d10b641ccee00cdffa820cbb517c8..69de50032c1f7b655d3be6bf035273f30a700e4a 100644
--- a/db/docs/batched_background_migrations/backfill_merge_request_predictions_project_id.yml
+++ b/db/docs/batched_background_migrations/backfill_merge_request_predictions_project_id.yml
@@ -5,4 +5,4 @@ feature_category: code_review_workflow
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/180839
 milestone: '17.9'
 queued_migration_version: 20250209012037
-finalized_by: # version of the migration that finalized this BBM
+finalized_by: '20250709232346'
diff --git a/db/post_migrate/20250709232346_finalize_hk_backfill_merge_request_predictions_project_id.rb b/db/post_migrate/20250709232346_finalize_hk_backfill_merge_request_predictions_project_id.rb
new file mode 100644
index 0000000000000000000000000000000000000000..f989d9380c293845c7ae186dcc80835e03b40498
--- /dev/null
+++ b/db/post_migrate/20250709232346_finalize_hk_backfill_merge_request_predictions_project_id.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class FinalizeHkBackfillMergeRequestPredictionsProjectId < Gitlab::Database::Migration[2.3]
+  milestone '18.2'
+
+  disable_ddl_transaction!
+
+  restrict_gitlab_migration gitlab_schema: :gitlab_main_cell
+
+  def up
+    ensure_batched_background_migration_is_finished(
+      job_class_name: 'BackfillMergeRequestPredictionsProjectId',
+      table_name: :merge_request_predictions,
+      column_name: :merge_request_id,
+      job_arguments: [:project_id, :merge_requests, :target_project_id, :merge_request_id],
+      finalize: true
+    )
+  end
+
+  def down; end
+end
diff --git a/db/schema_migrations/20250709232346 b/db/schema_migrations/20250709232346
new file mode 100644
index 0000000000000000000000000000000000000000..54c183ccdc7e42842585970f42ce04bb474a3531
--- /dev/null
+++ b/db/schema_migrations/20250709232346
@@ -0,0 +1 @@
+9056eb19ff7181e755003a996ee47ed351539aa8c19c0457005e940743ce9c36
\ No newline at end of file