diff --git a/src/app.module.ts b/src/app.module.ts
index ce2cf6a..463420d 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -8,7 +8,6 @@ import { LoggerModule } from 'nestjs-pino';
 import { TransactionModule } from './transaction/transaction.module';
 import { ProductModule } from './product/product.module';
 import { ConfigurableModule } from './configurable/configurable.module';
-// import { AuthModule } from './auth/auth.module';
 import { AuthModule } from './auth/auth.module';
 import configuration from './config/configuration';
 
@@ -53,6 +52,7 @@ import configuration from './config/configuration';
     TransactionModule,
     ConfigurableModule,
     ProductModule,
+    AuthModule,
   ],
 })
 export class AppModule {}
diff --git a/src/auth/auth.module.ts b/src/auth/auth.module.ts
index 75cbc4f..8d2d164 100644
--- a/src/auth/auth.module.ts
+++ b/src/auth/auth.module.ts
@@ -2,20 +2,12 @@ import { Module } from '@nestjs/common';
 import { AuthService } from './auth.service';
 import { UsersModule } from '../users/users.module';
 import { PassportModule } from '@nestjs/passport';
-import { JwtModule, JwtStrategy } from 'passport-jwt';
+import { LocalStrategy } from './local.strategy';
 import { AuthController } from './auth.controller';
 
 @Module({
-  imports: [
-    UsersModule,
-    PassportModule.register({
-      defaultStrategy: 'jwt',
-      property: 'user',
-      session: false,
-    }),
-  ],
+  imports: [UsersModule, PassportModule],
+  providers: [AuthService, LocalStrategy],
   controllers: [AuthController],
-  providers: [AuthService, JwtStrategy],
-  exports: [PassportModule, JwtModule],
 })
 export class AuthModule {}
diff --git a/src/auth/dto/input-login.dto.ts b/src/auth/dto/input-login.dto.ts
deleted file mode 100644
index 813ba07..0000000
--- a/src/auth/dto/input-login.dto.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { IsNotEmpty } from 'class-validator';
-
-export class InputLoginDto {
-  @IsNotEmpty()
-  username: string;
-
-  @IsNotEmpty()
-  password: string;
-}
diff --git a/src/auth/dto/response-login.dto.ts b/src/auth/dto/response-login.dto.ts
deleted file mode 100644
index 3132636..0000000
--- a/src/auth/dto/response-login.dto.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { IsNotEmpty } from 'class-validator';
-
-export class ResponseLoginDto {
-  @IsNotEmpty()
-  username: string;
-
-  @IsNotEmpty()
-  jwt: string;
-}
diff --git a/src/auth/local.strategy.ts b/src/auth/local.strategy.ts
index 83541f4..b43a0aa 100644
--- a/src/auth/local.strategy.ts
+++ b/src/auth/local.strategy.ts
@@ -2,7 +2,6 @@ import { Strategy } from 'passport-local';
 import { PassportStrategy } from '@nestjs/passport';
 import { Injectable, UnauthorizedException } from '@nestjs/common';
 import { AuthService } from './auth.service';
-import { User } from '../users/entities/user.entity';
 
 @Injectable()
 export class LocalStrategy extends PassportStrategy(Strategy) {
@@ -10,19 +9,13 @@ export class LocalStrategy extends PassportStrategy(Strategy) {
     super();
   }
 
-  // async validate(
-  //   username: string,
-  //   password: string,
-  // ): Promise<Omit<User, 'password'>> {
-  //   const user = await this.authService.validateUser({
-  //     username,
-  //     password,
-  //   });
-  //
-  //   if (!user) {
-  //     throw new UnauthorizedException();
-  //   }
-  //
-  //   return user;
-  // }
+  async validate(username: string, password: string): Promise<any> {
+    const user = await this.authService.validateUser(username, password);
+
+    if (!user) {
+      throw new UnauthorizedException();
+    }
+
+    return user;
+  }
 }
diff --git a/src/users/dto/create-user.dto.ts b/src/users/dto/create-user.dto.ts
index 2147aed..0f42d58 100644
--- a/src/users/dto/create-user.dto.ts
+++ b/src/users/dto/create-user.dto.ts
@@ -1,4 +1,4 @@
-import { IsNotEmpty, IsUUID } from 'class-validator';
+import { IsNotEmpty, IsOptional, IsUUID, ValidateIf } from 'class-validator';
 
 export class CreateUserDto {
   @IsNotEmpty()
@@ -10,6 +10,9 @@ export class CreateUserDto {
   @IsUUID()
   roleId: string;
 
+  @ValidateIf((o) => {
+    return !!o.superior;
+  })
   @IsUUID()
   superior: string;
 }
diff --git a/yarn.lock b/yarn.lock
index 5581f74..4400fb7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1504,7 +1504,7 @@ avvio@^7.1.2:
     fastq "^1.6.1"
     queue-microtask "^1.1.2"
 
-axios@0.24.0:
+axios@0.24.0, axios@^0.24.0:
   version "0.24.0"
   resolved "https://registry.npmjs.org/axios/-/axios-0.24.0.tgz"
   integrity sha512-Q6cWsys88HoPgAaFAVUb0WpPk0O8iTeisR9IMqy9G8AbO4NlpVknrnQS03zzF9PGAWgO3cgletO3VjV/P7VztA==