diff --git a/Westdc/User/Account.php b/Westdc/User/Account.php
index a8143f0..c5b85ec 100644
--- a/Westdc/User/Account.php
+++ b/Westdc/User/Account.php
@@ -34,7 +34,7 @@ class Account implements EventManagerAwareInterface
 
 	function __construct()
 	{
-		$this->db = new Db();
+		$this->db = Db::getInstance();
 		$this->config = Config::get();
 		
 		$Listener = new Listener();
@@ -173,8 +173,8 @@ class Account implements EventManagerAwareInterface
 	{	
 		$auth = new AuthenticationService();
 		$auth->setStorage(new SessionStorage($this->config->session_namespace));
-		
-		new Zend_Db($dbAdapter);
+
+		$dbAdapter = Zend_Db::getInstance();
 		
 		$authAdapter = new \Zend\Authentication\Adapter\DbTable(
 			$dbAdapter,
diff --git a/Westdc/User/Handle/LoginHandle.php b/Westdc/User/Handle/LoginHandle.php
index 48d1f8d..7630bed 100644
--- a/Westdc/User/Handle/LoginHandle.php
+++ b/Westdc/User/Handle/LoginHandle.php
@@ -19,7 +19,7 @@ class LoginHandle
 	
 	function __construct()
 	{
-		$this->db = new Db();
+		$this->db = Db::getInstance();
 	}
 	
 	public function checkParam(EventInterface $e){
diff --git a/Westdc/User/Handle/RegisterHandle.php b/Westdc/User/Handle/RegisterHandle.php
index 4b543cc..0ddc32d 100644
--- a/Westdc/User/Handle/RegisterHandle.php
+++ b/Westdc/User/Handle/RegisterHandle.php
@@ -21,7 +21,7 @@ class RegisterHandle
 	
 	function __construct($db = NULL)
 	{
-		$this->db = new Db();
+		$this->db = Db::getInstance();
 		$this->config = Config::get();
 	}