diff --git a/sentinel-guide-spring-cloud/web-api-demo/pom.xml b/sentinel-guide-spring-cloud/web-api-demo/pom.xml
index fabc698..5750acd 100644
--- a/sentinel-guide-spring-cloud/web-api-demo/pom.xml
+++ b/sentinel-guide-spring-cloud/web-api-demo/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo</artifactId>
-            <version>2.7.15</version>
+            <version>2.7.21</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.springframework</groupId>