diff --git a/study-micro-services-eureka-client4/pom.xml b/study-micro-services-eureka-client4/pom.xml
index 2f4c9c8..4e3fa9c 100644
--- a/study-micro-services-eureka-client4/pom.xml
+++ b/study-micro-services-eureka-client4/pom.xml
@@ -44,7 +44,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>3.8.1</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>