diff --git a/changes/12978.misc.md b/changes/12978.misc.md
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+++ b/changes/12978.misc.md
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+Reconcile the two diverged alembic heads (`b988f01b17a1`, `a1c4e7b93f22`) by adding an empty merge migration (`577c7a215934`) instead of editing the released migrations' `down_revision`.
diff --git a/src/ai/backend/manager/models/alembic/versions/577c7a215934_merge_heads_b988f01b17a1_and_.py b/src/ai/backend/manager/models/alembic/versions/577c7a215934_merge_heads_b988f01b17a1_and_.py
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+++ b/src/ai/backend/manager/models/alembic/versions/577c7a215934_merge_heads_b988f01b17a1_and_.py
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+"""merge heads b988f01b17a1 and a1c4e7b93f22
+
+Revision ID: 577c7a215934
+Revises: b988f01b17a1, a1c4e7b93f22
+Create Date: 2026-07-21 13:46:17.583476
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = "577c7a215934"
+down_revision = ("b988f01b17a1", "a1c4e7b93f22")
+# Part of: NEXT_RELEASE_VERSION
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    pass