diff --git a/demo-client/pom.xml b/demo-client/pom.xml
index 7460b9a..cf5326d 100644
--- a/demo-client/pom.xml
+++ b/demo-client/pom.xml
@@ -48,7 +48,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.10</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>