Erro 405 no Postman metodo atualizar

estou tendo o seguinte erro:

{
    "timestamp": "2022-10-04T15:02:50.721+0000",
    "status": 405,
    "error": "Method Not Allowed",
    "message": "Request method 'PUT' not supported",
    "trace": "org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'PUT' not supported\r\n\tat org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:200)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:419)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:365)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:65)\r\n\tat org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:401)\r\n\tat org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1231)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1014)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)\r\n\tat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)\r\n\tat org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:919)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:663)\r\n\tat org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:741)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\r\n\tat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)\r\n\tat 
}

package br.com.alura.forum.controller;

import java.net.URI;
import java.util.List;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.util.UriComponentsBuilder;

import br.com.alura.forum.controller.form.AtualizacaoTopicoForm;
import br.com.alura.forum.controller.form.TopicoForm;
import br.com.alura.forum.dto.DetalhesTopicoDto;
import br.com.alura.forum.dto.TopicoDto;
import br.com.alura.forum.modelo.Topico;
import br.com.alura.forum.repository.CursoRepository;
import br.com.alura.forum.repository.TopicoRepository;

@RestController("/topicos")
public class TopicosController {

    @Autowired
    private TopicoRepository topicoRepository;

    @Autowired
    private CursoRepository cursoRepository;

    @GetMapping
    public List<TopicoDto> lista(String nomeCurso){
        if(nomeCurso == null) {
            List<Topico> topicos = topicoRepository.findAll();
            return TopicoDto.converter(topicos);
        }else {
            List<Topico> topicos = topicoRepository.findByCursoNome(nomeCurso);
            return TopicoDto.converter(topicos);
        }
    }

    @PostMapping
    public ResponseEntity<TopicoDto> cadastrar(@RequestBody @Valid TopicoForm form, UriComponentsBuilder uriBuilder) {
        Topico topico = form.converter(cursoRepository);
        topicoRepository.save(topico);

        URI uri = uriBuilder.path("/topicos/{id}").buildAndExpand(topico.getId()).toUri();
        return ResponseEntity.created(uri).body(new TopicoDto(topico));
    }

    @GetMapping("/{id}")
    public DetalhesTopicoDto detalhar(@PathVariable Long id){
        Topico topico = topicoRepository.getOne(id);
        return new DetalhesTopicoDto(topico);

    }

    @PutMapping("/{id}")
    @Transactional
    public ResponseEntity<TopicoDto> atualizar(@PathVariable Long id, @RequestBody @Valid AtualizacaoTopicoForm form) {
        Topico topico = form.atualizar(id, topicoRepository);

            return ResponseEntity.ok(new TopicoDto(topico));        
    }
}

Console:

2022-10-04 12:09:11.059 WARN 9460 --- [nio-8080-exec-1] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'PUT' not supported]