diff --git a/ElasticSearch/pom.xml b/ElasticSearch/pom.xml
index 7a3dca3..bd42496 100644
--- a/ElasticSearch/pom.xml
+++ b/ElasticSearch/pom.xml
@@ -23,7 +23,7 @@
     <dependency>
       <groupId>org.elasticsearch.client</groupId>
       <artifactId>elasticsearch-rest-client</artifactId>
-      <version>6.5.4</version>
+      <version>6.8.15</version>
     </dependency>
 
     <!--high level API-->