diff --git a/spring-boot-elasticsearch-demo/pom.xml b/spring-boot-elasticsearch-demo/pom.xml
old mode 100755
new mode 100644
index ef3499d..b62311b
--- a/spring-boot-elasticsearch-demo/pom.xml
+++ b/spring-boot-elasticsearch-demo/pom.xml
@@ -23,7 +23,7 @@
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
 
-        <elasticsearch.version>5.3.1</elasticsearch.version>
+        <elasticsearch.version>6.8.15</elasticsearch.version>
         <log4j2.version>2.6.2</log4j2.version>
         <fastjson.version>1.2.31</fastjson.version>