diff --git a/_1/pom.xml b/_1/pom.xml
index 748c43d..cc59cd1 100644
--- a/_1/pom.xml
+++ b/_1/pom.xml
@@ -11,7 +11,7 @@
         <dependency>
             <groupId>org.elasticsearch</groupId>
             <artifactId>elasticsearch</artifactId>
-            <version>6.5.0</version>
+            <version>6.8.15</version>
         </dependency>
         <dependency>
             <groupId>org.elasticsearch.client</groupId>