diff --git a/rpc-demo/rpc-client-demo/pom.xml b/rpc-demo/rpc-client-demo/pom.xml
index 0626792..e79d121 100644
--- a/rpc-demo/rpc-client-demo/pom.xml
+++ b/rpc-demo/rpc-client-demo/pom.xml
@@ -73,7 +73,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>