diff --git a/spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigManager.java b/spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigManager.java
index 46a1800a..4b5e98f9 100644
--- a/spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigManager.java
+++ b/spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigManager.java
@@ -23,7 +23,6 @@ import org.springframework.context.ApplicationContextAware;
 
 /**
  * @author <a href="mailto:liaochunyhm@live.com">liaochuntao</a>
- * @since
  */
 public class NacosConfigManager implements ApplicationContextAware {
 
diff --git a/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/NacosNamingManager.java b/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/NacosNamingManager.java
index acffc236..9bf40a45 100644
--- a/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/NacosNamingManager.java
+++ b/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/NacosNamingManager.java
@@ -24,7 +24,6 @@ import org.springframework.context.ApplicationContextAware;
 
 /**
  * @author <a href="mailto:liaochunyhm@live.com">liaochuntao</a>
- * @since
  */
 public class NacosNamingManager implements ApplicationContextAware {