diff --git a/pom.xml b/pom.xml
index 97e237256..1abf7cfff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
      import spring-framework-bom. No need configure spring version. -->
     <spring-cloud.version>2023.0.3</spring-cloud.version>
     <spring-boot.version>3.3.2</spring-boot.version>
-    <servicecomb.version>2.8.19</servicecomb.version>
+    <servicecomb.version>2.8.21</servicecomb.version>
   </properties>
 
   <modules>
diff --git a/spring-cloud-huawei-service-engine/service-engine-common/src/main/java/com/huaweicloud/service/engine/common/transport/RBACRequestAuthHeaderProvider.java b/spring-cloud-huawei-service-engine/service-engine-common/src/main/java/com/huaweicloud/service/engine/common/transport/RBACRequestAuthHeaderProvider.java
index aba11fa95..f4df7e5c6 100644
--- a/spring-cloud-huawei-service-engine/service-engine-common/src/main/java/com/huaweicloud/service/engine/common/transport/RBACRequestAuthHeaderProvider.java
+++ b/spring-cloud-huawei-service-engine/service-engine-common/src/main/java/com/huaweicloud/service/engine/common/transport/RBACRequestAuthHeaderProvider.java
@@ -26,6 +26,7 @@
 
 import org.apache.commons.lang3.StringUtils;
 import org.apache.servicecomb.foundation.auth.AuthHeaderProvider;
+import org.apache.servicecomb.http.client.event.EngineConnectChangedEvent;
 import org.apache.servicecomb.service.center.client.OperationEvents;
 import org.apache.servicecomb.service.center.client.ServiceCenterClient;
 import org.apache.servicecomb.service.center.client.model.RbacTokenRequest;
@@ -81,6 +82,8 @@ public class RBACRequestAuthHeaderProvider implements AuthHeaderProvider {
 
   private int lastStatusCode = 401;
 
+  private ServiceCenterClient serviceCenterClient;
+
   public RBACRequestAuthHeaderProvider(BootstrapProperties bootstrapProperties) {
     this.discoveryProperties = bootstrapProperties.getDiscoveryBootstrapProperties();
     this.serviceCombSSLProperties = bootstrapProperties.getServiceCombSSLProperties();
@@ -88,6 +91,8 @@ public RBACRequestAuthHeaderProvider(BootstrapProperties bootstrapProperties) {
     this.microserviceProperties = bootstrapProperties.getMicroserviceProperties();
 
     if (enabled()) {
+      serviceCenterClient = ServiceCenterUtils.serviceCenterClient(discoveryProperties,
+          serviceCombSSLProperties, Collections.emptyList());
       EventManager.getEventBus().register(this);
 
       executorService = Executors.newFixedThreadPool(1, t -> new Thread(t, "rbac-executor"));
@@ -113,6 +118,11 @@ public void onNotPermittedEvent(OperationEvents.UnAuthorizedOperationEvent event
     this.executorService.submit(this::retryRefresh);
   }
 
+  @Subscribe
+  public void onEngineConnectChangedEvent(EngineConnectChangedEvent event) {
+    cache.refresh(CACHE_KEY);
+  }
+
   protected String createHeaders() {
     LOGGER.info("start to create RBAC headers");
 
@@ -136,9 +146,6 @@ protected String createHeaders() {
   }
 
   protected RbacTokenResponse callCreateHeaders() {
-    ServiceCenterClient serviceCenterClient = ServiceCenterUtils
-        .serviceCenterClient(discoveryProperties, serviceCombSSLProperties,
-            Collections.emptyList());
     RbacTokenRequest request = new RbacTokenRequest();
     request.setName(serviceCombRBACProperties.getName());
     request.setPassword(serviceCombRBACProperties.getPassword());
diff --git a/spring-cloud-huawei-service-engine/service-engine-config/src/main/java/com/huaweicloud/config/ConfigService.java b/spring-cloud-huawei-service-engine/service-engine-config/src/main/java/com/huaweicloud/config/ConfigService.java
index 1763b9383..1039daeed 100644
--- a/spring-cloud-huawei-service-engine/service-engine-config/src/main/java/com/huaweicloud/config/ConfigService.java
+++ b/spring-cloud-huawei-service-engine/service-engine-config/src/main/java/com/huaweicloud/config/ConfigService.java
@@ -152,6 +152,7 @@ private void initServiceCenterConfig(BootstrapProperties bootstrapProperties,
         bootstrapProperties.getServiceCombSSLProperties(),
         authHeaderProviders, HttpTransportFactory.defaultRequestConfig().build());
     ConfigCenterClient configCenterClient = new ConfigCenterClient(addressManager, httpTransport);
+    configCenterClient.setEventBus(EventManager.getEventBus());
 
     queryConfigurationsRequest = createQueryConfigurationsRequest(bootstrapProperties);
     firstPull(bootstrapProperties.getConfigBootstrapProperties(), configCenterClient, queryConfigurationsRequest,
@@ -254,6 +255,7 @@ private void initKieConfig(BootstrapProperties bootstrapProperties,
         authHeaderProviders, requestBuilder.build());
     KieConfiguration kieConfiguration = createKieConfiguration(bootstrapProperties);
     KieClient kieClient = new KieClient(kieAddressManager, httpTransport, kieConfiguration);
+    kieClient.setEventBus(EventManager.getEventBus());
     KieConfigManager kieConfigManager = new KieConfigManager(kieClient, EventManager.getEventBus(), kieConfiguration,
         configConverter, kieAddressManager);
     kieConfigManager.firstPull();