diff --git a/backend-node/src/services/multiConnectionQueryService.ts b/backend-node/src/services/multiConnectionQueryService.ts
index 5fa2f573..22ed667f 100644
--- a/backend-node/src/services/multiConnectionQueryService.ts
+++ b/backend-node/src/services/multiConnectionQueryService.ts
@@ -12,7 +12,6 @@ import prisma from "../config/database";
 import { logger } from "../utils/logger";
 
 // 🔧 Prisma 클라이언트 중복 생성 방지 - 기존 인스턴스 재사용
-import prisma = require("../config/database");
 
 export interface ValidationResult {
   isValid: boolean;
diff --git a/backend-node/src/services/tableManagementService.ts b/backend-node/src/services/tableManagementService.ts
index e91056b4..0ab0c4cf 100644
--- a/backend-node/src/services/tableManagementService.ts
+++ b/backend-node/src/services/tableManagementService.ts
@@ -15,7 +15,6 @@ import { entityJoinService } from "./entityJoinService";
 import { referenceCacheService } from "./referenceCacheService";
 
 // 🔧 Prisma 클라이언트 중복 생성 방지 - 기존 인스턴스 재사용
-import prisma = require("../config/database");
 
 export class TableManagementService {
   constructor() {}