diff --git a/pom.xml b/pom.xml
index 1f9c4ac..7978a0e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
         <dependency>
             <groupId>org.elasticsearch</groupId>
             <artifactId>elasticsearch</artifactId>
-            <version>2.3.4</version>
+            <version>6.8.15</version>
         </dependency>
 
         <dependency>