diff --git a/Chapter9-2-1/compute-service/pom.xml b/Chapter9-2-1/compute-service/pom.xml
index 89aed4d..9d0a7b1 100644
--- a/Chapter9-2-1/compute-service/pom.xml
+++ b/Chapter9-2-1/compute-service/pom.xml
@@ -38,7 +38,7 @@
 		<dependency>
 			<groupId>com.alibaba</groupId>
 			<artifactId>dubbo</artifactId>
-			<version>2.5.3</version>
+			<version>2.6.12</version>
 			<exclusions>
 				<exclusion>
 					<artifactId>spring</artifactId>