diff --git a/demo-client/pom.xml b/demo-client/pom.xml
index 6b37e3a..aa6dc86 100644
--- a/demo-client/pom.xml
+++ b/demo-client/pom.xml
@@ -136,7 +136,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>