diff --git a/app/backend/src/app.module.ts b/app/backend/src/app.module.ts
index 7c888a94..a4f2ad92 100644
--- a/app/backend/src/app.module.ts
+++ b/app/backend/src/app.module.ts
@@ -17,7 +17,7 @@ import { OptionModule } from './option/option.module';
   imports: [
     TypeOrmModule.forRoot({
       type: 'postgres',
-      host: '127.0.0.1',
+      host: '172.17.0.2',
       port: 5432,
       password: 'password',
       username: 'postgres',