diff --git a/pom.xml b/pom.xml
index e8f4a55..2039980 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,7 +49,7 @@
         <dependency>
             <groupId>org.elasticsearch</groupId>
             <artifactId>elasticsearch</artifactId>
-            <version>1.7.1</version>
+            <version>6.8.15</version>
             <type>jar</type>
         </dependency>
         <!-- elasticsearch-shield -->