diff --git a/internal/dao/bundleExtend.go b/internal/dao/bundleExtend.go
index 6ccf800..98758ff 100644
--- a/internal/dao/bundleExtend.go
+++ b/internal/dao/bundleExtend.go
@@ -839,7 +839,7 @@ left join (
 	where r.deleted_at is null
 	group by
 		r.bundle_order_on
-	) r on r.bundle_order_on = bor.order_no
+	) r on r.bundle_order_on COLLATE utf8mb4_general_ci = bor.order_no COLLATE utf8mb4_general_ci
 `).Scan(&data).Error
 	return
 }