diff --git a/static/mqtt-broker/pom.xml b/static/mqtt-broker/pom.xml
index f9329d4..1f2583f 100644
--- a/static/mqtt-broker/pom.xml
+++ b/static/mqtt-broker/pom.xml
@@ -31,7 +31,7 @@
 	<dependency>
 		<groupId>junit</groupId>
 		<artifactId>junit</artifactId>
-		<version>3.8.1</version>
+		<version>4.13.1</version>
 		<scope>test</scope>
 	</dependency>