Cannot refresh configs in @FeignClient with @RefreshScope

I’m running a Spring Config Server and another Spring boot app that uses config server. I have a Feign-Client in my second app like this:

@FeignClient(url = "${myconfig.url}", name = "ConfigServerFeign",
        configuration = {FeignConfig.class}, fallback = ConfigServerFeignFallback.class)
public interface ConfigServerFeign
{
    @RequestMapping(value = "/test", method = RequestMethod.POST,
            headers = {"Content-Type=application/json; charset=UTF-8"}, consumes = {MediaType.APPLICATION_JSON_UTF8_VALUE})
    RequestModel test(@RequestBody RequestModel request);
}

and i have a config class for feign like this:

@Configuration
public class FeignConfig
{
    @Value("${myconfig.header}")
    private String authorization;
    @Bean
    public RequestInterceptor basicAuthRequestInterceptor()
    {
        return requestTemplate -> requestTemplate.header("Authorization", "Basic " + authorization);
    }
}

i need to change ${myconfig.url} or ${myconfig.header} in runtime. i think i have two option, first one is using @RefreshScope on top of ConfigServerConfig that does not work, the second option is to use @RefreshScope on FeignConfig class that gives me this error:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.example.configclient.ConfigServerFeign': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: No Scope registered for scope name 'refresh'
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1634) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1316) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1282) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    ... 19 common frames omitted
Caused by: java.lang.IllegalStateException: No Scope registered for scope name 'refresh'
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.cloud.context.named.NamedContextFactory.createContext(NamedContextFactory.java:116) ~[spring-cloud-context-1.2.4.RELEASE.jar:1.2.4.RELEASE]
    at org.springframework.cloud.context.named.NamedContextFactory.getContext(NamedContextFactory.java:85) ~[spring-cloud-context-1.2.4.RELEASE.jar:1.2.4.RELEASE]
    at org.springframework.cloud.context.named.NamedContextFactory.getInstance(NamedContextFactory.java:121) ~[spring-cloud-context-1.2.4.RELEASE.jar:1.2.4.RELEASE]
    at org.springframework.cloud.netflix.feign.FeignClientFactoryBean.get(FeignClientFactoryBean.java:127) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar:1.3.5.RELEASE]
    at org.springframework.cloud.netflix.feign.FeignClientFactoryBean.feign(FeignClientFactoryBean.java:84) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar:1.3.5.RELEASE]
    at org.springframework.cloud.netflix.feign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:155) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar:1.3.5.RELEASE]
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    ... 29 common frames omitted

how can i fix this ??? 😦