diff --git a/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/DiscoveryUtil.java b/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/DiscoveryUtil.java
index f729098cd..898e7edf8 100644
--- a/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/DiscoveryUtil.java
+++ b/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/DiscoveryUtil.java
@@ -17,7 +17,10 @@
 
 package com.tencent.cloud.common.util;
 
-public class DiscoveryUtil {
+/**
+ * Utils for Discovery.
+ */
+public final class DiscoveryUtil {
 
 	private DiscoveryUtil() {