diff --git a/elasticsearch-6.4.0-plugin/pom.xml b/elasticsearch-6.4.0-plugin/pom.xml
index bb8c9df..c9c5a54 100644
--- a/elasticsearch-6.4.0-plugin/pom.xml
+++ b/elasticsearch-6.4.0-plugin/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>
   </dependencies>