diff --git a/guessnumber/pom.xml b/guessnumber/pom.xml
index 25e171b..3320fdc 100644
--- a/guessnumber/pom.xml
+++ b/guessnumber/pom.xml
@@ -24,7 +24,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.11</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->