diff --git a/cobar-client-demo/pom.xml b/cobar-client-demo/pom.xml
index 2c47e68..a59adfe 100644
--- a/cobar-client-demo/pom.xml
+++ b/cobar-client-demo/pom.xml
@@ -46,7 +46,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.11</version>
+			<version>4.13.1</version>
 		</dependency>
 		<dependency>
 			<groupId>cglib</groupId>