diff --git a/spring-cloud-alibaba-examples/ans-example/ans-consumer-feign-example/pom.xml b/spring-cloud-alibaba-examples/ans-example/ans-consumer-feign-example/pom.xml
index 5d4becd5..52116dec 100644
--- a/spring-cloud-alibaba-examples/ans-example/ans-consumer-feign-example/pom.xml
+++ b/spring-cloud-alibaba-examples/ans-example/ans-consumer-feign-example/pom.xml
@@ -29,4 +29,12 @@
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
     </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/spring-cloud-alibaba-examples/ans-example/ans-consumer-ribbon-example/pom.xml b/spring-cloud-alibaba-examples/ans-example/ans-consumer-ribbon-example/pom.xml
index 63d0ced2..d9e4d62b 100644
--- a/spring-cloud-alibaba-examples/ans-example/ans-consumer-ribbon-example/pom.xml
+++ b/spring-cloud-alibaba-examples/ans-example/ans-consumer-ribbon-example/pom.xml
@@ -25,4 +25,12 @@
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
     </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryProperties.java b/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryProperties.java
index f4d4ae48..0dadefc4 100644
--- a/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryProperties.java
+++ b/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryProperties.java
@@ -68,7 +68,7 @@ public class NacosDiscoveryProperties {
 	/**
 	 * watch delay,duration to pull new service from nacos server.
 	 */
-	private long watchDelay = 5000;
+	private long watchDelay = 30000;
 
 	/**
 	 * nacos naming log file name