diff --git a/_1/pom.xml b/_1/pom.xml
index e02f679..6aba6d2 100644
--- a/_1/pom.xml
+++ b/_1/pom.xml
@@ -37,7 +37,7 @@
         <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>