diff --git a/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py b/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py
index a7ff48a8..0557b6e7 100644
--- a/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py
+++ b/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py
@@ -69,7 +69,6 @@ def upgrade() -> None:
                         sa.Column("created_at", sa.DateTime, default=datetime.datetime.utcnow, nullable=False),
                         sa.Column("updated_at", sa.DateTime, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow, nullable=False),
                         sa.Column('others', JSON()),
-                        replace_existing=True,
                         schema=schema)
         op.create_primary_key('THROTTLER_PK', 'throttlers', ['throttler_id'], schema=schema)
         op.create_unique_constraint('THROTTLER_SITE_UQ', 'throttlers', ['site'], schema=schema)