diff --git a/backend/alembic/versions/030_permission_oid.py b/backend/alembic/versions/030_permission_oid.py
new file mode 100644
index 0000000..d7e6831
--- /dev/null
+++ b/backend/alembic/versions/030_permission_oid.py
@@ -0,0 +1,39 @@
+"""030_permission_oid
+
+Revision ID: c1d7ac00b3a8
+Revises: 77d4c39ec22f
+Create Date: 2025-07-21 11:49:43.115524
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'c1d7ac00b3a8'
+down_revision = '77d4c39ec22f'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('ds_rules', sa.Column('oid', sa.BigInteger(), nullable=True))
+    op.alter_column('ds_permission', 'id',
+                    existing_type=sa.INTEGER(),
+                    type_=sa.BigInteger(),
+                    existing_nullable=False,
+                    autoincrement=True)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('ds_permission', 'id',
+                    existing_type=sa.BigInteger(),
+                    type_=sa.INTEGER(),
+                    existing_nullable=False,
+                    autoincrement=True)
+    op.drop_column('ds_rules', 'oid')
+    # ### end Alembic commands ###