diff --git a/Spring-Cloud-Book-Code-1/hystrix/pom.xml b/Spring-Cloud-Book-Code-1/hystrix/pom.xml
index aed48ef..912a828 100644
--- a/Spring-Cloud-Book-Code-1/hystrix/pom.xml
+++ b/Spring-Cloud-Book-Code-1/hystrix/pom.xml
@@ -23,7 +23,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>3.8.1</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>