diff --git a/db/docs/batched_background_migrations/backfill_partitioned_uploads.yml b/db/docs/batched_background_migrations/backfill_partitioned_uploads.yml
index 91827ca5ecb988f54e070fdabefcd89ea020da94..1e1e619c25bc963ebedcf378278aa5039343aa9e 100644
--- a/db/docs/batched_background_migrations/backfill_partitioned_uploads.yml
+++ b/db/docs/batched_background_migrations/backfill_partitioned_uploads.yml
@@ -5,4 +5,4 @@ feature_category: database
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/181349
 milestone: '18.2'
 queued_migration_version: 20250609164216
-finalized_by: # version of the migration that finalized this BBM
+finalized_by: 20250717035404
diff --git a/db/post_migrate/20250717035404_finalize_partitioned_uploads_backfill.rb b/db/post_migrate/20250717035404_finalize_partitioned_uploads_backfill.rb
new file mode 100644
index 0000000000000000000000000000000000000000..8a4d4371102648c3f74f36d71b7366c93eb688cd
--- /dev/null
+++ b/db/post_migrate/20250717035404_finalize_partitioned_uploads_backfill.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class FinalizePartitionedUploadsBackfill < Gitlab::Database::Migration[2.3]
+  disable_ddl_transaction!
+
+  milestone '18.3'
+
+  restrict_gitlab_migration gitlab_schema: :gitlab_main
+
+  def up
+    ensure_batched_background_migration_is_finished(
+      job_class_name: 'BackfillPartitionedUploads',
+      table_name: :uploads,
+      column_name: :id,
+      job_arguments: [],
+      finalize: true
+    )
+  end
+
+  def down; end
+end
diff --git a/db/schema_migrations/20250717035404 b/db/schema_migrations/20250717035404
new file mode 100644
index 0000000000000000000000000000000000000000..b42f6f2a8378b4b81432f035784de6768b0b4ab1
--- /dev/null
+++ b/db/schema_migrations/20250717035404
@@ -0,0 +1 @@
+8f33eb8eb3c38df915435acd1f8e3d5408f0d55fe441fa9c0607ee135234a1d4
\ No newline at end of file