diff --git a/src/auth/auth.controller.ts b/src/auth/auth.controller.ts
index 7324fc6..f092d3f 100644
--- a/src/auth/auth.controller.ts
+++ b/src/auth/auth.controller.ts
@@ -4,6 +4,7 @@ import { AuthService } from './auth.service';
 import { LoginDto } from './dto/login.dto';
 import { AuthGuard } from '@nestjs/passport';
 import { RegisterDto } from './dto/register.dto';
+import { ApiBearerAuth } from '@nestjs/swagger';
 
 @Controller()
 export class AuthController {
@@ -16,6 +17,9 @@ export class AuthController {
     return this.authService.login(user);
   }
 
+
+    @UseGuards(AuthGuard('jwt'))
+  @ApiBearerAuth('bearer')
  @UseGuards(AuthGuard('jwt'))
   @Get('profile')
   @AuthDocumentation.bearerAuth()
diff --git a/src/entities/entities.ts b/src/entities/entities.ts
index 4f8d4c5..8add556 100644
--- a/src/entities/entities.ts
+++ b/src/entities/entities.ts
@@ -47,8 +47,14 @@ export class Usuario {
   @PrimaryGeneratedColumn({ name: 'id_usuario', type: 'int' })
   id_usuario: number;
 
-  @Column({ type: 'varchar', length: 9 })
-  num_cuenta: string;
+ @Column({
+    type: 'varchar',
+    length: 9,
+    unique: true,
+    nullable: true,     
+    default: null,
+  })
+ num_cuenta: string;
 
   @Column({ type: 'varchar', length: 60 })
   nombre: string;
@@ -66,11 +72,11 @@ export class Usuario {
   default: null,
 })
 rfc: string | null;
-  @Column({ name: 'fecha_nacimiento', type: 'varchar', length: 8 })
-  fecha_nacimiento: string;
+  @Column({ name: 'fecha_nacimiento', type: 'varchar',  nullable: true, length: 8 })
+  fecha_nacimiento: string | null;
 
-  @Column({ type: 'int' })
-  generacion: number;
+  @Column({ type: 'int',  nullable: true, })
+  generacion: number | null;
 
  @ManyToOne(() => Genero, genero => genero.usuarios, { nullable: true })
 @JoinColumn({ name: 'id_genero' })
diff --git a/src/main.ts b/src/main.ts
index 5871d92..96bd98b 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -22,7 +22,16 @@ async function bootstrap() {
       'El objetivo es mejorar la gestion interna y la integridad de los datos',
     )
     .setVersion('1.0')
-    .addBearerAuth()
+    .addBearerAuth(
+      { 
+        type: 'http', 
+        scheme: 'bearer', 
+        bearerFormat: 'JWT',
+        name: 'Authorization',
+        in: 'header',
+      },
+      'bearer', // nombre del security definition
+    )
     .build();
   // .addServer(process.env.SWAGGER_SERVER_URL) // descomentar  parael servidor de acatlan