diff --git a/backend/alembic/versions/e76_app_settings_add_table.py b/backend/alembic/versions/e76_app_settings_add_table.py
index ba6391be..ca4bb71d 100644
--- a/backend/alembic/versions/e76_app_settings_add_table.py
+++ b/backend/alembic/versions/e76_app_settings_add_table.py
@@ -11,7 +11,7 @@ from sqlalchemy.dialects import postgresql
 
 # revision identifiers, used by Alembic.
 revision = 'e76_app_settings'
-down_revision = 'c1a2b3d4e5f6'
+down_revision = 'd4e5f6a7b8c9'
 branch_labels = None
 depends_on = None
 
diff --git a/backend/alembic/versions/ed63109b1ac8_merge_multiple_heads.py b/backend/alembic/versions/ed63109b1ac8_merge_multiple_heads.py
deleted file mode 100644
index b711d73b..00000000
--- a/backend/alembic/versions/ed63109b1ac8_merge_multiple_heads.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""merge multiple heads
-
-Revision ID: ed63109b1ac8
-Revises: d4e5f6a7b8c9, e76_app_settings
-Create Date: 2026-04-07 21:10:25.498270
-
-"""
-from typing import Sequence, Union
-
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision: str = 'ed63109b1ac8'
-down_revision: Union[str, Sequence[str], None] = ('d4e5f6a7b8c9', 'e76_app_settings')
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    """Upgrade schema."""
-    pass
-
-
-def downgrade() -> None:
-    """Downgrade schema."""
-    pass