diff --git a/2021.4 Guarded Object/pom.xml b/2021.4 Guarded Object/pom.xml
index 9ed8db9..f8e6184 100644
--- a/2021.4 Guarded Object/pom.xml	
+++ b/2021.4 Guarded Object/pom.xml	
@@ -19,7 +19,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.8.1</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>