diff --git a/backend/alembic/versions/012_license_ddl.py b/backend/alembic/versions/012_license_ddl.py
new file mode 100644
index 0000000..1212f85
--- /dev/null
+++ b/backend/alembic/versions/012_license_ddl.py
@@ -0,0 +1,33 @@
+"""011_license_ddl
+
+Revision ID: a3af70d43e98
+Revises: 8dc3b1bdbfef
+Create Date: 2025-06-18 16:09:33.896600
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a3af70d43e98'
+down_revision = '941e2355a94d'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'license',
+        sa.Column('id', sa.BigInteger(), primary_key=True, nullable=False),
+        sa.Column('license_key', sa.Text(), default="", nullable=False),
+        sa.Column('f2c_license', sa.Text(), default="", nullable=False),
+        sa.Column('create_time', sa.BigInteger(), default=0, nullable=False),
+        sa.Column('update_time', sa.BigInteger(), default=0, nullable=False)
+    )
+    op.create_index(op.f('ix_license_id'), 'license', ['id'], unique=False)
+
+
+def downgrade():
+    op.drop_table('license')
+    op.drop_index(op.f('ix_license_id'), table_name='license')