diff --git a/pom.xml b/pom.xml
index 75f2fde5..19a9c59b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -85,7 +85,7 @@
     <dependency>
       <groupId>org.elasticsearch</groupId>
       <artifactId>elasticsearch</artifactId>
-      <version>2.3.4</version>
+      <version>6.8.15</version>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jgit</groupId>