diff --git a/sdk/pom.xml b/sdk/pom.xml
index a4ae77c..3419893 100644
--- a/sdk/pom.xml
+++ b/sdk/pom.xml
@@ -33,7 +33,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <elasticsearch>6.2.0</elasticsearch>
+        <elasticsearch>6.8.15</elasticsearch>
     </properties>
 
     <build>