diff --git a/pom.xml b/pom.xml
index 7360966..d6f53c1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -436,7 +436,7 @@
       <dependency>
         <groupId>org.elasticsearch</groupId>
         <artifactId>elasticsearch</artifactId>
-        <version>1.6.0</version>
+        <version>6.8.15</version>
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>