diff --git a/dubbo_demo/pom.xml b/dubbo_demo/pom.xml
index ca1d2eb..a6e5b71 100644
--- a/dubbo_demo/pom.xml
+++ b/dubbo_demo/pom.xml
@@ -29,7 +29,7 @@
         <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo</artifactId>
-            <version>2.7.5</version>
+            <version>2.7.21</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
         <dependency>