diff --git a/2021.5 Version Vectors/pom.xml b/2021.5 Version Vectors/pom.xml
index c092fd6..c5ffd78 100644
--- a/2021.5 Version Vectors/pom.xml	
+++ b/2021.5 Version Vectors/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>