Acesso negado ao tentar acessar http://localhost:8080/swagger-ui.html

Bom dia, quando tento acessar no navegador para entrar na documentação, apresenta o código erro de 403 que não tenho permissão. Tentei fazer algumas alterações no código porém não consegui acessar.

O código está igual no vídeo, única alteração que estou trabalhando com gradlew ao invés do maven, porém todos imports foram realizados.

Segue o código das classes que utilizamos para configurar o swagger.

Classe Security Configurations

package br.com.alura.forum.config.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import br.com.alura.forum.repository.UsuarioRepository;

@EnableWebSecurity
@Configuration
public class SecurityConfigurations extends WebSecurityConfigurerAdapter {

    @Autowired
    private AutenticacaoService autenticacaoService;

    @Autowired
    private TokenService tokenService;

    @Autowired
    private UsuarioRepository usuarioRepository;

    @Override
    @Bean
    protected AuthenticationManager authenticationManager() throws Exception {
        return super.authenticationManager();
    }

    //Configuracoes de autenticacao
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(autenticacaoService).passwordEncoder(new BCryptPasswordEncoder());
    }

    //Configuracoes de autorizacao
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers(HttpMethod.GET, "/topicos").permitAll()
                .antMatchers(HttpMethod.GET, "/topicos/*").permitAll()
                .antMatchers(HttpMethod.POST, "/auth").permitAll()
                .antMatchers(HttpMethod.GET, "/actuator/**").permitAll()
                .anyRequest().authenticated()
                .and().csrf().disable()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and().addFilterBefore(new AutenticacaoViaTokenFilter(tokenService, usuarioRepository), UsernamePasswordAuthenticationFilter.class);
    }


    //Configuracoes de recursos estaticos(js, css, imagens, etc.)
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers("/**.html", "/v2/api-docs", "/webjars/**", "/configuration/**", "/swagger-resources/**");
    }

}

Classe Swagger Configurations

package br.com.alura.forum.config.swagger;

import java.util.Arrays;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import br.com.alura.forum.modelo.Usuario;
import springfox.documentation.builders.ParameterBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.schema.ModelRef;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;


@Configuration
public class SwaggerConfigurations {

    @Bean
    public Docket forumApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage("br.com.alura.forum"))
                .paths(PathSelectors.ant("/**"))
                .build()
                .ignoredParameterTypes(Usuario.class)
                .globalOperationParameters(Arrays.asList(
                        new ParameterBuilder()
                                .name("Authorization")
                                .description("Header para token JWT")
                                .modelRef(new ModelRef("string"))
                                .parameterType("header")
                                .required(false)
                                .build()));
    }

}

Segue o código no github, caso queira dar uma olhada em outra classe https://github.com/GabrielTavares96/Spring-Boot-API---Alura

Atenciosamente.