diff --git a/example/session_example.go b/example/session_example.go
index 87e5490..60a7f42 100644
--- a/example/session_example.go
+++ b/example/session_example.go
@@ -43,7 +43,7 @@ func main() {
 	flag.StringVar(&host, "host", "127.0.0.1", "--host=192.168.1.100")
 	flag.StringVar(&port, "port", "6667", "--port=6667")
 	flag.StringVar(&user, "user", "root", "--user=root")
-	flag.StringVar(&password, "password", "root", "--password=root")
+	flag.StringVar(&password, "password", "IoTDB@2017", "--password=IoTDB@2017")
 	flag.Parse()
 	config := &client.Config{
 		Host:     host,
@@ -150,7 +150,7 @@ func connectCluster() {
 	config := &client.ClusterConfig{
 		NodeUrls: strings.Split("127.0.0.1:6667,127.0.0.1:6668,127.0.0.1:6669", ","),
 		UserName: "root",
-		Password: "root",
+		Password: "IoTDB@2017",
 	}
 	session, err := client.NewClusterSession(config)
 	if err != nil {
diff --git a/example/session_pool/session_pool_example.go b/example/session_pool/session_pool_example.go
index 6b043d1..468124d 100644
--- a/example/session_pool/session_pool_example.go
+++ b/example/session_pool/session_pool_example.go
@@ -43,7 +43,7 @@ func main() {
 	flag.StringVar(&host, "host", "127.0.0.1", "--host=192.168.1.100")
 	flag.StringVar(&port, "port", "6667", "--port=6667")
 	flag.StringVar(&user, "user", "root", "--user=root")
-	flag.StringVar(&password, "password", "root", "--password=root")
+	flag.StringVar(&password, "password", "IoTDB@2017", "--password=IoTDB@2017")
 	flag.Parse()
 	config := &client.PoolConfig{
 		Host:     host,
diff --git a/test/e2e/e2e_test.go b/test/e2e/e2e_test.go
index a21a271..307fa45 100644
--- a/test/e2e/e2e_test.go
+++ b/test/e2e/e2e_test.go
@@ -47,7 +47,7 @@ func (s *e2eTestSuite) SetupSuite() {
 	clusterConfig := client.ClusterConfig{
 		NodeUrls: strings.Split("iotdb:6668,iotdb:6667,iotdb:6669", ","),
 		UserName: "root",
-		Password: "root",
+		Password: "IoTDB@2017",
 	}
 	session, err := client.NewClusterSession(&clusterConfig)
 	s.Require().NoError(err)