[Bug] Erro 403 ao acessar localhost:8080/swagger-ui.html

Olá,

Estou no vídeo 03 da aula 07 - Documentação da API com Swagger.

E estou tentando acessar a página gerada pelo Swagger.

Porém dá erro 403.

Meu arquivo SecurityConfigurations.java está desta forma:

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

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

@EnableWebSecurity
@Configuration
public class SecurityConfigurations extends WebSecurityConfigurerAdapter {

    @Autowired
    private AutenticacaoService autenticacaoService;

    @Autowired
    private UsuarioRepository usuarioRepository;

    @Autowired
    private TokenService tokenService;

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

    // Configurações de autenticação (controle de acesso/login)
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(autenticacaoService).passwordEncoder(new BCryptPasswordEncoder()); //Preciso passar o service que tem a lógica de autenticação


    }

    // Configurações de autorização (URLs, quem pode acessar cada URL, Perfis de acesso)
    // Indica quais URLs precisa ter controle de acesso
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers(HttpMethod.GET, "/topicos/listar").permitAll()
                .antMatchers(HttpMethod.GET, "/topicos/detalhar/*").permitAll()
                .antMatchers("/h2-console").permitAll()
                .antMatchers("/h2-console/").permitAll()
                .antMatchers("/h2-console/*").permitAll()
                .antMatchers("/h2-console/login.do*").permitAll()
                .antMatchers("/auth/**").permitAll()
                .antMatchers("/actuator/*").permitAll()
                .anyRequest().authenticated()
                .and().csrf().disable()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and().addFilterBefore(new AutenticacaoViaTokenFilter(tokenService, usuarioRepository), UsernamePasswordAuthenticationFilter.class);

    }


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

E o arquivo SwaggerConfigurations está assim:

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

import br.com.alura.forum.modelo.Usuario;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
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);
    }
}