diff --git a/src/Foundation/ServiceProviders/PaymentServiceProvider.php b/src/Foundation/ServiceProviders/PaymentServiceProvider.php
index faccec65e..59cf57205 100644
--- a/src/Foundation/ServiceProviders/PaymentServiceProvider.php
+++ b/src/Foundation/ServiceProviders/PaymentServiceProvider.php
@@ -25,9 +25,9 @@
  */
 namespace EasyWeChat\Foundation\ServiceProviders;
 
+use EasyWeChat\Payment\LuckyMoney\LuckyMoney;
 use EasyWeChat\Payment\Merchant;
 use EasyWeChat\Payment\Payment;
-use EasyWeChat\Payment\LuckyMoney\LuckyMoney;
 use Pimple\Container;
 use Pimple\ServiceProviderInterface;
 
diff --git a/src/Payment/luckymoney/API.php b/src/Payment/luckymoney/API.php
index adfdb33f0..8fbadc796 100644
--- a/src/Payment/luckymoney/API.php
+++ b/src/Payment/luckymoney/API.php
@@ -20,8 +20,8 @@
  */
 namespace EasyWeChat\Payment\LuckyMoney;
 
-use EasyWeChat\Payment\Merchant;
 use EasyWeChat\Core\AbstractAPI;
+use EasyWeChat\Payment\Merchant;
 use EasyWeChat\Support\Collection;
 use EasyWeChat\Support\XML;
 use Psr\Http\Message\ResponseInterface;
@@ -108,7 +108,7 @@ public function query($orderNo)
      */
     public function send(array $params, $type = self::TYPE_NORMAL)
     {
-        if ($type == self::TYPE_NORMAL) {
+        if ($type === self::TYPE_NORMAL) {
             $api = self::API_SEND;
         } else {
             $api = self::API_SEND_GROUP;
@@ -208,5 +208,4 @@ protected function parseResponse($response)
 
         return new Collection((array) XML::parse($response));
     }
-
 }
diff --git a/tests/Core/CoreHttpTest.php b/tests/Core/CoreHttpTest.php
index 31fb78d68..09ebb60f6 100755
--- a/tests/Core/CoreHttpTest.php
+++ b/tests/Core/CoreHttpTest.php
@@ -118,7 +118,7 @@ public function testPost()
             $this->assertEquals(['form_params' => ['foo' => 'bar']], $response['body']);
 
             // string
-            $response = $http->post('http://easywechat.org', "hello here.");
+            $response = $http->post('http://easywechat.org', 'hello here.');
 
             $this->assertEquals('http://easywechat.org', $response['url']);
             $this->assertEquals('POST', $response['method']);