diff --git a/spring-cloud-tencent-examples/polaris-config-example/src/main/resources/bootstrap.yml b/spring-cloud-tencent-examples/polaris-config-example/src/main/resources/bootstrap.yml
index 1f257a787..6a13aee32 100644
--- a/spring-cloud-tencent-examples/polaris-config-example/src/main/resources/bootstrap.yml
+++ b/spring-cloud-tencent-examples/polaris-config-example/src/main/resources/bootstrap.yml
@@ -12,6 +12,7 @@ spring:
         groups:
           - name: ${spring.application.name} # group name
             files: [ "config/application.properties", "config/bootstrap.yml" ] # config/application.properties takes precedence over config/bootstrap.yml
+        refresh-behavior: specific_bean
 management:
   endpoints:
     web: