diff --git a/README.md b/README.md
index fa32e5a..5b7d057 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ phpsms为laravel-sms提供了全套的短信发送机制，而且phpsms也有自
 在项目根目录下运行如下composer命令:
 ```php
    //安装2.2版本(推荐)
-   composer require 'toplan/laravel-sms:~2.2.0',
+   composer require 'toplan/laravel-sms:~2.2.1',
 
    //安装开发中版本
    composer require 'toplan/laravel-sms:dev-master'
@@ -271,7 +271,7 @@ scheme://your-domain.com/sms/voice-verify
    ]);
    if ($validator->fails()) {
        //验证失败后建议清空存储的短信发送信息，防止用户重复试错
-       \SmsManager::forgetSentInfo($uuid)
+       \SmsManager::forgetSentInfo($uuid);
        return redirect()->back()->withErrors($validator);
    }
 ```
diff --git a/composer.json b/composer.json
index d5497bd..35887f3 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
     "name": "toplan/laravel-sms",
     "description": "sms send package for laravel",
     "license": "MIT",
-    "version": "2.2.0",
+    "version": "2.2.1",
     "keywords": ["sms", "laravel sms", "laravel-sms"],
     "authors": [
         {
diff --git a/src/Toplan/LaravelSms/SmsManagerServiceProvider.php b/src/Toplan/LaravelSms/SmsManagerServiceProvider.php
index 93bf7f3..57fc4f7 100644
--- a/src/Toplan/LaravelSms/SmsManagerServiceProvider.php
+++ b/src/Toplan/LaravelSms/SmsManagerServiceProvider.php
@@ -62,10 +62,10 @@ protected function initPhpSms()
 
         // define how to use queue
         $queueJob = config('laravel-sms.queueJob', 'App\Jobs\SendReminderSms');
-        if (!class_exists($queueJob)) {
-            throw new LaravelSmsException("Class [$queueJob] does not exists.");
-        }
         Sms::queue(function($sms, $data) use ($queueJob){
+            if (!class_exists($queueJob)) {
+                throw new LaravelSmsException("Class [$queueJob] does not exists.");
+            }
             $this->dispatch(new $queueJob($sms));
             return [
                 'success' => true,