diff --git a/build.gradle b/build.gradle
index 2a12c43da..bb62a7401 100644
--- a/build.gradle
+++ b/build.gradle
@@ -73,7 +73,7 @@ ext {
     // jmeter
     jmeterVersion = "5.0"
     // jackson
-    jacksonVersion = "2.9.10.1"
+    jacksonVersion = "2.11.2"
 
     commonsNetVersion = "3.6"
 
@@ -167,6 +167,7 @@ allprojects {
         resolutionStrategy {
             // fix security bug
             force "com.alibaba:fastjson:${fastjsonVersion}"
+            force "com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}"
             // force use netty
             force "io.netty:netty-all:${nettyVersion}"
             force "org.apache.zookeeper:zookeeper:${zookeeperVersion}"
@@ -182,6 +183,11 @@ allprojects {
         implementation("org.apache.commons:commons-lang3:${apacheCommonsVersion.lang3}")
         implementation("org.apache.commons:commons-collections4:${apacheCommonsVersion.collections4}")
 
+        // jackson
+        implementation("com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}")
+        implementation("com.fasterxml.jackson.core:jackson-core:${jacksonVersion}")
+        implementation("com.fasterxml.jackson.core:jackson-annotations:${jacksonVersion}")
+
         // slf4j logger
         implementation("org.slf4j:slf4j-api:${slf4jVersion}")
 
diff --git a/project/build-ci.sh b/project/build-ci.sh
index 7cc89fdb1..12795b6ed 100644
--- a/project/build-ci.sh
+++ b/project/build-ci.sh
@@ -40,16 +40,16 @@ function installFisco(){
 function installZookeeper(){
     #unzip file
     cd ${current_path}/weevent-build/modules/zookeeper/
-    tar -zxf apache-zookeeper-3.6.0-bin.tar.gz
+    tar -zxf apache-zookeeper-3.6.1-bin.tar.gz
 
     #modify configuration
-    sed -i '158s#\\#"-Dzookeeper.admin.enableServer=false" \\#' ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin/bin/zkServer.sh
-    cp ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin/conf/zoo_sample.cfg ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin/conf/zoo.cfg
-    sed -i '$a\dataDir=/tmp/zk_data' ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin/conf/zoo.cfg
-    sed -i '$a\dataLogDir=/tmp/zk_logs' ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin/conf/zoo.cfg
+    sed -i '158s#\\#"-Dzookeeper.admin.enableServer=false" \\#' ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin/bin/zkServer.sh
+    cp ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin/conf/zoo_sample.cfg ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin/conf/zoo.cfg
+    sed -i '$a\dataDir=/tmp/zk_data' ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin/conf/zoo.cfg
+    sed -i '$a\dataLogDir=/tmp/zk_logs' ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin/conf/zoo.cfg
 
     #start zookeeper
-    cd ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin/bin/
+    cd ${current_path}/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin/bin/
     bash zkServer.sh start
 }
 
diff --git a/weevent-build/bin/start-all.sh b/weevent-build/bin/start-all.sh
index 28ef000d8..175bb3937 100644
--- a/weevent-build/bin/start-all.sh
+++ b/weevent-build/bin/start-all.sh
@@ -8,7 +8,7 @@ if [[ -e ${current_path}/install-all.sh ]];then
 fi
 
 # start zookeeper first
-cd ${current_path}/zookeeper/apache-zookeeper-3.6.0-bin/bin/
+cd ${current_path}/zookeeper/apache-zookeeper-3.6.1-bin/bin/
 ./zkServer.sh start
 cd ${current_path}
 sleep 3
diff --git a/weevent-build/bin/stop-all.sh b/weevent-build/bin/stop-all.sh
index 8b480b587..5bec596ab 100644
--- a/weevent-build/bin/stop-all.sh
+++ b/weevent-build/bin/stop-all.sh
@@ -19,6 +19,6 @@ do
 done
 
 # finally stop zookeeper
-cd ${current_path}/zookeeper/apache-zookeeper-3.6.0-bin/bin/;
+cd ${current_path}/zookeeper/apache-zookeeper-3.6.1-bin/bin/;
 ./zkServer.sh stop;
 
diff --git a/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin.tar.gz b/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin.tar.gz
similarity index 60%
rename from weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin.tar.gz
rename to weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin.tar.gz
index 50d43af6d..d3cfcd3a6 100644
Binary files a/weevent-build/modules/zookeeper/apache-zookeeper-3.6.0-bin.tar.gz and b/weevent-build/modules/zookeeper/apache-zookeeper-3.6.1-bin.tar.gz differ
diff --git a/weevent-build/modules/zookeeper/install-zookeeper.sh b/weevent-build/modules/zookeeper/install-zookeeper.sh
index ff6185f48..fa326782f 100644
--- a/weevent-build/modules/zookeeper/install-zookeeper.sh
+++ b/weevent-build/modules/zookeeper/install-zookeeper.sh
@@ -11,13 +11,13 @@ while [[ $# -ge 2 ]] ; do
 done
 
 configzookeeper(){
-    sed -i '/nohup/s/\\/"-Dzookeeper.admin.enableServer=false" \\/g' ${out_path}/apache-zookeeper-3.6.0-bin/bin/zkServer.sh
-    chmod +x ${out_path}/apache-zookeeper-3.6.0-bin/bin/zkServer.sh
-    cp ${out_path}/apache-zookeeper-3.6.0-bin/conf/zoo_sample.cfg ${out_path}/apache-zookeeper-3.6.0-bin/conf/zoo.cfg
-    sed -i '/dataDir=/cdataDir='${out_path}/apache-zookeeper-3.6.0-bin/zk_data ${out_path}/apache-zookeeper-3.6.0-bin/conf/zoo.cfg
+    sed -i '/nohup/s/\\/"-Dzookeeper.admin.enableServer=false" \\/g' ${out_path}/apache-zookeeper-3.6.1-bin/bin/zkServer.sh
+    chmod +x ${out_path}/apache-zookeeper-3.6.1-bin/bin/zkServer.sh
+    cp ${out_path}/apache-zookeeper-3.6.1-bin/conf/zoo_sample.cfg ${out_path}/apache-zookeeper-3.6.1-bin/conf/zoo.cfg
+    sed -i '/dataDir=/cdataDir='${out_path}/apache-zookeeper-3.6.1-bin/zk_data ${out_path}/apache-zookeeper-3.6.1-bin/conf/zoo.cfg
     zookeeper_pre="clientPort="
     zookeeper_string=${zookeeper_pre}${zookeeper_port}
-    sed -i 's/^clientPort=.*$/'$(echo ${zookeeper_pre}${zookeeper_port})'/' ${out_path}/apache-zookeeper-3.6.0-bin/conf/zoo.cfg
+    sed -i 's/^clientPort=.*$/'$(echo ${zookeeper_pre}${zookeeper_port})'/' ${out_path}/apache-zookeeper-3.6.1-bin/conf/zoo.cfg
 }
 
 function copy_file(){
diff --git a/weevent-build/package.sh b/weevent-build/package.sh
index 35d599831..7df24e260 100644
--- a/weevent-build/package.sh
+++ b/weevent-build/package.sh
@@ -116,7 +116,7 @@ function copy_install_file(){
     cp -r ${top_path}/weevent-processor/dist/* ${out_path}/modules/processor
 
     mkdir -p ${out_path}/modules/zookeeper
-    tar -zxf ${current_path}/modules/zookeeper/apache-zookeeper-3.6.0-bin.tar.gz -C ${out_path}/modules/zookeeper
+    tar -zxf ${current_path}/modules/zookeeper/apache-zookeeper-3.6.1-bin.tar.gz -C ${out_path}/modules/zookeeper
     cp ${current_path}/modules/zookeeper/install-zookeeper.sh ${out_path}/modules/zookeeper
 }
 
diff --git a/weevent-client/build.gradle b/weevent-client/build.gradle
index a489347e1..45a06f1f0 100644
--- a/weevent-client/build.gradle
+++ b/weevent-client/build.gradle
@@ -2,9 +2,6 @@ apply plugin: "io.spring.dependency-management"
 apply plugin: "signing"
 
 dependencies {
-    // jackson
-    implementation("com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}")
-
     // stomp, see https://github.com/TooTallNate/Java-WebSocket
     implementation("org.java-websocket:Java-WebSocket:${WebSocketVersion}")
     implementation("org.springframework.data:spring-data-commons:${springBootVersion}")
diff --git a/weevent-file/src/test/java/com/webank/weevent/file/FileChunksTransportTest.java b/weevent-file/src/test/java/com/webank/weevent/file/FileChunksTransportTest.java
index 65be0d89a..14fcec9da 100644
--- a/weevent-file/src/test/java/com/webank/weevent/file/FileChunksTransportTest.java
+++ b/weevent-file/src/test/java/com/webank/weevent/file/FileChunksTransportTest.java
@@ -15,8 +15,6 @@
 import com.webank.weevent.file.service.FileChunksMeta;
 import com.webank.weevent.file.service.FileChunksTransport;
 
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Ignore;
@@ -24,6 +22,9 @@
 import org.mockito.Mock;
 import org.mockito.Mockito;
 
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
 /**
  * FileChunks Tester.
  *
diff --git a/weevent-file/src/test/java/com/webank/weevent/file/FtpClientServiceTest.java b/weevent-file/src/test/java/com/webank/weevent/file/FtpClientServiceTest.java
index d5089f213..51b97bb8b 100644
--- a/weevent-file/src/test/java/com/webank/weevent/file/FtpClientServiceTest.java
+++ b/weevent-file/src/test/java/com/webank/weevent/file/FtpClientServiceTest.java
@@ -7,13 +7,14 @@
 import com.webank.weevent.client.BrokerException;
 import com.webank.weevent.file.ftpclient.FtpClientService;
 
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
 import lombok.extern.slf4j.Slf4j;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
 @Slf4j
 public class FtpClientServiceTest {
     private String ftpHost = "127.0.0.1";
@@ -43,7 +44,6 @@ public void testFtpService() {
     }
 
 
-
     @Test
     @Ignore
     public void testFtpUpLoad() throws BrokerException {
diff --git a/weevent-file/src/test/java/com/webank/weevent/file/WeEventFileClientTest.java b/weevent-file/src/test/java/com/webank/weevent/file/WeEventFileClientTest.java
index b30c64665..8ac4ea01a 100644
--- a/weevent-file/src/test/java/com/webank/weevent/file/WeEventFileClientTest.java
+++ b/weevent-file/src/test/java/com/webank/weevent/file/WeEventFileClientTest.java
@@ -1,5 +1,9 @@
 package com.webank.weevent.file;
 
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
 import com.webank.weevent.client.BrokerException;
 import com.webank.weevent.client.SendResult;
 import com.webank.weevent.core.config.FiscoConfig;
@@ -10,6 +14,7 @@
 import com.webank.weevent.file.inner.DiskFiles;
 import com.webank.weevent.file.service.FileChunksMeta;
 import com.webank.weevent.file.service.WeEventFileClient;
+
 import lombok.extern.slf4j.Slf4j;
 import org.junit.Assert;
 import org.junit.Before;
@@ -18,10 +23,6 @@
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
-
 @Slf4j
 public class WeEventFileClientTest {
 
@@ -38,7 +39,6 @@ public class WeEventFileClientTest {
     private String passWd = "";
 
 
-
     @Before
     public void before() {
         this.fiscoConfig = new FiscoConfig();
@@ -90,7 +90,7 @@ public void testPublishFileWithVerify() throws Exception {
         weEventFileClient.openTransport4Sender(this.topicName, resource.getInputStream());
 
         // handshake time delay for web3sdk
-        Thread.sleep(1000*10);
+        Thread.sleep(1000 * 10);
 
         FileChunksMeta fileChunksMeta = weEventFileClient.publishFile(this.topicName,
                 new File("src/main/resources/ca.crt").getAbsolutePath(), true);
@@ -125,7 +125,7 @@ public void onException(Throwable e) {
 
     @Test
     public void testCloseTransport() {
-        WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath,this.fileChunkSize, this.fiscoConfig);
+        WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath, this.fileChunkSize, this.fiscoConfig);
         weEventFileClient.closeTransport(this.topicName);
         Assert.assertTrue(true);
     }
@@ -142,16 +142,16 @@ public void testListFile() {
     }
 
 
-
     // new class for test status interface
     static class Runner4PublishFile implements Runnable {
         private final String topic;
         private final WeEventFileClient weEventFileClient;
 
-        Runner4PublishFile(WeEventFileClient weEventFileClient, String topic){
+        Runner4PublishFile(WeEventFileClient weEventFileClient, String topic) {
             this.weEventFileClient = weEventFileClient;
             this.topic = topic;
         }
+
         @Override
         public void run() {
             //publish file
@@ -159,7 +159,7 @@ public void run() {
             try {
                 weEventFileClient.publishFile(topic,
                         new File("src/main/resources/bigfile.zip").getAbsolutePath(), true);
-            } catch(Exception e) {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
 
@@ -203,12 +203,14 @@ static class Runner4Status implements Runnable {
         private final String topic;
         private final WeEventFileClient weEventFileClient;
         private final boolean isSender;
-        Runner4Status(String groupId, String topic, WeEventFileClient weEventFileClient, boolean isSender){
+
+        Runner4Status(String groupId, String topic, WeEventFileClient weEventFileClient, boolean isSender) {
             this.groupId = groupId;
             this.topic = topic;
             this.weEventFileClient = weEventFileClient;
             this.isSender = isSender;
         }
+
         @Override
         public void run() {
             FileTransportStats fileTransportStats = weEventFileClient.status(topic);
@@ -241,14 +243,14 @@ public void run() {
     @Ignore
     public void testStatus4Sender() throws InterruptedException {
         WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath, this.fileChunkSize, this.fiscoConfig);
-        new Thread(new Runner4PublishFile(weEventFileClient, this.topicName),"thread publish").start();
+        new Thread(new Runner4PublishFile(weEventFileClient, this.topicName), "thread publish").start();
         // thread delay for get sender status
         System.out.println("sender delay 10s:");
-        Thread.sleep(1000*10);
+        Thread.sleep(1000 * 10);
 
         System.out.println("begin get sender status:");
-        new Thread(new Runner4Status(this.groupId, this.topicName, weEventFileClient, true),"thread status").start();
-        Thread.sleep(1000*60*5);
+        new Thread(new Runner4Status(this.groupId, this.topicName, weEventFileClient, true), "thread status").start();
+        Thread.sleep(1000 * 60 * 5);
         Assert.assertTrue(true);
     }
 
@@ -256,13 +258,13 @@ public void testStatus4Sender() throws InterruptedException {
     @Ignore
     public void testStatus4Receiver() throws InterruptedException {
         WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath, this.fileChunkSize, this.fiscoConfig);
-        new Thread(new Runner4SubscribeFile(weEventFileClient, this.topicName),"thread publish").start();
+        new Thread(new Runner4SubscribeFile(weEventFileClient, this.topicName), "thread publish").start();
         // thread delay for get receiver status
         System.out.println("receiver waiting sender publish file, delay 30s:");
         Thread.sleep(1000 * 30);
 
         System.out.println("begin get receiver status: ");
-        new Thread(new Runner4Status(this.groupId, this.topicName, weEventFileClient, false),"thread status").start();
+        new Thread(new Runner4Status(this.groupId, this.topicName, weEventFileClient, false), "thread status").start();
 
         // main thread sleep, waiting for subscribe file
         Thread.sleep(1000 * 60 * 5);
@@ -315,7 +317,7 @@ public void testGetDiskFiles() {
     @Ignore
     public void testPublishFileFromFtp() throws Exception {
         FtpInfo ftpInfo = new FtpInfo(this.host, this.port, this.userName, this.passWd, "");
-        WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath, ftpInfo,  this.fileChunkSize, this.fiscoConfig);
+        WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath, ftpInfo, this.fileChunkSize, this.fiscoConfig);
 
         weEventFileClient.openTransport4Sender(topicName);
         FileChunksMeta fileChunksMeta = weEventFileClient.publishFile(this.topicName, "./test/build_chain.sh", true);
@@ -342,7 +344,7 @@ public void onException(Throwable e) {
         WeEventFileClient weEventFileClient = new WeEventFileClient(this.groupId, this.localReceivePath, ftpInfo, this.fileChunkSize, this.fiscoConfig);
         weEventFileClient.openTransport4Receiver(this.topicName, fileListener);
 
-        Thread.sleep(1000*60*5);
+        Thread.sleep(1000 * 60 * 5);
         Assert.assertTrue(true);
     }