diff --git a/ch23-1/demo-provider/pom.xml b/ch23-1/demo-provider/pom.xml
index b00bd8b8..bcb25efc 100644
--- a/ch23-1/demo-provider/pom.xml
+++ b/ch23-1/demo-provider/pom.xml
@@ -31,7 +31,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>dubbo</artifactId>
-            <version>2.6.2</version>
+            <version>2.6.9</version>
         </dependency>
         <dependency>
             <groupId>org.apache.curator</groupId>