diff --git a/cobra-client-demo/pom.xml b/cobra-client-demo/pom.xml
index 852c0e9..e849781 100644
--- a/cobra-client-demo/pom.xml
+++ b/cobra-client-demo/pom.xml
@@ -62,7 +62,7 @@
 	<dependency>
 		<groupId>junit</groupId>
 		<artifactId>junit</artifactId>
-		<version>4.11</version>
+		<version>4.13.1</version>
 	</dependency>
 	<dependency>
 		<groupId>cglib</groupId>