diff --git a/src/common/helper/env.validation.ts b/src/common/helper/env.validation.ts
index 55c6c34..6b857cf 100644
--- a/src/common/helper/env.validation.ts
+++ b/src/common/helper/env.validation.ts
@@ -79,16 +79,16 @@ export class EnvironmentVariables {
   GPT_KEY: string;
 
   @IsString()
-  NCP_ACCESS_KEY_ID: string;
+  AWS_S3_ACCESS_KEY: string;
 
   @IsString()
-  NCP_SECRET_ACCESS_KEY: string;
+  AWS_S3_SECRET_KEY: string;
 
   @IsString()
-  NCP_BUCKET_NAME: string;
+  AWS_S3_REGION: string;
 
   @IsString()
-  NCP_ENDPOINT: string;
+  AWS_S3_BUCKET_NAME: string;
 }
 
 export function envValidation(config: Record<string, unknown>) {
diff --git a/src/upload/upload.service.ts b/src/upload/upload.service.ts
index f6187c2..d9f4a32 100644
--- a/src/upload/upload.service.ts
+++ b/src/upload/upload.service.ts
@@ -1,7 +1,7 @@
 import { Injectable } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 
-import AWS, { S3 } from 'aws-sdk';
+import { S3 } from 'aws-sdk';
 
 @Injectable()
 export class UploadService {
@@ -9,10 +9,11 @@ export class UploadService {
 
   constructor(private readonly configService: ConfigService) {
     this.awsS3 = new S3({
-      endpoint: new AWS.Endpoint(this.configService.get('NCP_ENDPOINT')),
-      accessKeyId: this.configService.get('NCP_ACCESS_KEY_ID'),
-      secretAccessKey: this.configService.get('NCP_SECRET_ACCESS_KEY'),
-      region: 'kr-standard',
+      region: this.configService.get('AWS_S3_REGION'),
+      credentials: {
+        accessKeyId: this.configService.get('AWS_S3_ACCESS_KEY'),
+        secretAccessKey: this.configService.get('AWS_S3_SECRET_KEY'),
+      },
     });
   }
 
@@ -20,7 +21,7 @@ export class UploadService {
     try {
       const uploadResult = await this.awsS3
         .upload({
-          Bucket: this.configService.get('NCP_BUCKET_NAME'),
+          Bucket: this.configService.get('AWS_S3_BUCKET_NAME'),
           Key: folder + file.originalname,
           Body: file.buffer,
           ContentType: file.mimetype,