diff --git a/study-multiple-implementations/pom.xml b/study-multiple-implementations/pom.xml
index 07c9a38..d5d195d 100644
--- a/study-multiple-implementations/pom.xml
+++ b/study-multiple-implementations/pom.xml
@@ -26,7 +26,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>3.8.1</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>