diff --git a/scripts/backfill_material_axis.py b/scripts/backfill_material_axis.py
index a27fd80..4f5c8ce 100644
--- a/scripts/backfill_material_axis.py
+++ b/scripts/backfill_material_axis.py
@@ -36,7 +36,7 @@ import sys
 
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "app"))
 
-from sqlalchemy import text
+# text() 미사용 — exec_driver_sql (정규식 콜론 함정)
 from sqlalchemy.ext.asyncio import create_async_engine
 
 # ─── 술어별 (라벨, 카운트 SQL, 적용 SQL) ───────────────────────────────────────
@@ -191,12 +191,14 @@ async def main() -> None:
         trans = await conn.begin()
         try:
             for label, sql in STEPS:
-                result = await conn.execute(text(sql))
+                # text() 는 정규식의 '(?:' 콜론을 bind param 으로 오인 (migration 러너와
+                # 동일 함정) → driver 직결 실행
+                result = await conn.exec_driver_sql(sql)
                 print(f"[{tag}] {label}: {result.rowcount}행")
 
             print("\n─── 검증 (트랜잭션 내 미리보기) ───")
             for label, sql in VERIFY_SQL:
-                result = await conn.execute(text(sql))
+                result = await conn.exec_driver_sql(sql)
                 rows = result.fetchall()
                 print(f"\n{label}:")
                 for row in rows: