diff --git a/.travis.yml b/.travis.yml
index 81184b34..8eb8beeb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ jdk:
 
 before_install:
   - sudo rm -rf /var/lib/elasticsearch
-  - curl https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.15.5-amd64.deb -o elasticsearch.deb && sudo dpkg -i --force-confnew elasticsearch.deb
+  - curl https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.16.0-amd64.deb -o elasticsearch.deb && sudo dpkg -i --force-confnew elasticsearch.deb
   - sudo cp ./src/test/resources/elasticsearch.yml /etc/elasticsearch/elasticsearch.yml
   - sudo cat /etc/elasticsearch/elasticsearch.yml
   - sudo java -version
diff --git a/pom.xml b/pom.xml
index 0d735633..3617be41 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.nlpcn</groupId>
 	<artifactId>elasticsearch-sql</artifactId>
-	<version>8.15.5.0</version>
+	<version>8.16.0.0</version>
 	<packaging>jar</packaging>
 	<description>Query elasticsearch using SQL</description>
 	<name>elasticsearch-sql</name>
@@ -44,7 +44,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<runSuite>**/MainTestSuite.class</runSuite>
 		<elasticsearch.plugin.name>sql</elasticsearch.plugin.name>
-		<elasticsearch.version>8.15.5</elasticsearch.version>
+		<elasticsearch.version>8.16.0</elasticsearch.version>
 		<elasticsearch.plugin.classname>org.elasticsearch.plugin.nlpcn.SqlPlug</elasticsearch.plugin.classname>
         <druid.version>1.2.15</druid.version>
         <guava.version>32.0.0-jre</guava.version>
diff --git a/src/main/java/org/nlpcn/es4sql/Test.java b/src/main/java/org/nlpcn/es4sql/Test.java
index 94907360..e52851ca 100644
--- a/src/main/java/org/nlpcn/es4sql/Test.java
+++ b/src/main/java/org/nlpcn/es4sql/Test.java
@@ -4,6 +4,7 @@
 import org.elasticsearch.client.internal.node.NodeClient;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.telemetry.metric.MeterRegistry;
+import org.elasticsearch.threadpool.DefaultBuiltInExecutorBuilders;
 import org.elasticsearch.threadpool.ThreadPool;
 
 import java.util.HashMap;
@@ -22,7 +23,7 @@ public static String sqlToEsQuery(String sql) throws Exception {
 //                .put(ThreadContext.PREFIX + ".key2", "val 2")
 //                .build();
 
-        ThreadPool threadPool = new ThreadPool(settings, MeterRegistry.NOOP);
+        ThreadPool threadPool = new ThreadPool(settings, MeterRegistry.NOOP, new DefaultBuiltInExecutorBuilders());
         Client client = new NodeClient(settings, threadPool);
         SearchDao searchDao = new org.nlpcn.es4sql.SearchDao(client);
         try {
diff --git a/src/test/java/org/nlpcn/es4sql/MainTestSuite.java b/src/test/java/org/nlpcn/es4sql/MainTestSuite.java
index 34ea358e..bc8b3959 100644
--- a/src/test/java/org/nlpcn/es4sql/MainTestSuite.java
+++ b/src/test/java/org/nlpcn/es4sql/MainTestSuite.java
@@ -21,6 +21,7 @@
 import org.elasticsearch.client.RestClientBuilder;
 import org.elasticsearch.client.internal.Client;
 import org.elasticsearch.common.transport.TransportAddress;
+import org.elasticsearch.core.TimeValue;
 import org.elasticsearch.index.query.QueryBuilders;
 import org.elasticsearch.index.reindex.DeleteByQueryRequestBuilder;
 import org.elasticsearch.plugin.nlpcn.client.ElasticsearchRestClient;
@@ -82,7 +83,7 @@ public static void setUp() throws Exception {
 		String clusterName = nodeInfos.getClusterName().value();
 		System.out.println(String.format("Found cluster... cluster name: %s", clusterName));
 
-        client.admin().cluster().prepareUpdateSettings().setTransientSettings(ImmutableMap.of(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), false)).get();
+        client.admin().cluster().prepareUpdateSettings(TimeValue.ONE_MINUTE, TimeValue.ONE_MINUTE).setTransientSettings(ImmutableMap.of(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), false)).get();
 
 		// Load test data.
         loadBulk("src/test/resources/online.json", TEST_INDEX_ONLINE);
@@ -147,7 +148,7 @@ private static void createTestIndex(String index) {
     }
 
     private static void deleteTestIndex(String index) {
-        if(client.admin().cluster().prepareState().execute().actionGet().getState().getMetadata().hasIndex(index)){
+        if(client.admin().cluster().prepareState(TimeValue.ONE_MINUTE).execute().actionGet().getState().getMetadata().hasIndex(index)){
             client.admin().indices().prepareDelete(index).get();
         }
     }
@@ -446,7 +447,7 @@ private static TransportAddress getTransportAddress() throws UnknownHostExceptio
     }
 
     private static ElasticsearchTransport getElasticsearchTransport(RestClient restClient) {
-        RestClientOptions.Builder transportOptionsBuilder = new RestClientOptions(RequestOptions.DEFAULT).toBuilder();
+        RestClientOptions.Builder transportOptionsBuilder = new RestClientOptions(RequestOptions.DEFAULT, true).toBuilder();
 
         ContentType jsonContentType = Version.VERSION == null ? ContentType.APPLICATION_JSON
                 : ContentType.create("application/vnd.elasticsearch+json",