diff --git a/zookeeper-exercise/pom.xml b/zookeeper-exercise/pom.xml
index 6fc5c71..57c41c2 100644
--- a/zookeeper-exercise/pom.xml
+++ b/zookeeper-exercise/pom.xml
@@ -27,7 +27,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.7</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>