diff --git a/patentMiner/pom.xml b/patentMiner/pom.xml
index 4f91d4c..6a84158 100644
--- a/patentMiner/pom.xml
+++ b/patentMiner/pom.xml
@@ -24,7 +24,7 @@
                 <dependency>
             <groupId>org.elasticsearch</groupId>
             <artifactId>elasticsearch</artifactId>
-            <version>5.6.2</version>
+            <version>6.8.17</version>
         </dependency>
         <dependency>
     <groupId>org.elasticsearch.client</groupId>