diff --git a/pom.xml b/pom.xml
index 586b7f8..2ce8208 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
 
     <properties>
         <calcite.version>1.21.0</calcite.version>
-        <elasticsearch.version>6.3.1</elasticsearch.version>
+        <elasticsearch.version>6.8.17</elasticsearch.version>
         <flink.version>1.10.0</flink.version>
         <flink.shaded.version>9.0</flink.shaded.version>
         <hadoop.version>2.7.5</hadoop.version>