elasticsearch 6.4.3

pom.xml

@@ -66,7 +66,7 @@
 		<suggest.version>6.4.1</suggest.version>
 
 		<!-- Elasticsearch -->
-		<elasticsearch.version>6.4.2</elasticsearch.version>
+		<elasticsearch.version>6.4.3</elasticsearch.version>
 		<elasticsearch.httpclient.version>6.4.0-SNAPSHOT</elasticsearch.httpclient.version>
 		<cluster.runner.version>${elasticsearch.version}.0</cluster.runner.version>