How to change basePath for Springfox Swagger 2.0

@Bean
public Docket newsApi(ServletContext servletContext) {
    return new Docket(DocumentationType.SWAGGER_2).pathProvider(new RelativePathProvider(servletContext) {
        @Override
        public String getApplicationBasePath() {
            return "/serviceName" + super.getApplicationBasePath();
        }
    }).host("proxyURL");
}