diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index a3779fa..77ea474
--- a/pom.xml
+++ b/pom.xml
@@ -169,7 +169,7 @@
 		<dependency>
 			<groupId>org.elasticsearch</groupId>
 			<artifactId>elasticsearch</artifactId>
-			<version>5.5.0</version>
+			<version>6.8.13</version>
 		</dependency>
 		<dependency>
 			<groupId>org.elasticsearch.client</groupId>