diff --git a/config/app.php b/config/app.php
index 42467b52..e540c83f 100644
--- a/config/app.php
+++ b/config/app.php
@@ -94,7 +94,7 @@ return [
     |
     */
 
-    'fallback_locale' => env('APP_FALLBACK_LOCALE', 'zh-CN'),
+    'fallback_locale' => env('APP_FALLBACK_LOCALE', 'zh_CN'),
 
     /*
     |--------------------------------------------------------------------------
diff --git a/resources/lang/zh-CN.json b/resources/lang/zh_CN.json
similarity index 99%
rename from resources/lang/zh-CN.json
rename to resources/lang/zh_CN.json
index 0c610c98..c6f84e1f 100644
--- a/resources/lang/zh-CN.json
+++ b/resources/lang/zh_CN.json
@@ -24,4 +24,4 @@
   "You are receiving this email because we received a password reset request for your account.": "您收到此电子邮件是因为我们收到了您帐户的密码重设请求。",
   "Your email address is not verified.": "您的电子邮件尚未验证通过",
   "You have not responded this ticket in :num hours, System has closed your ticket.": "超过:num小时未回复工单，系统已自动关闭了您的工单"
-}
\ No newline at end of file
+}
diff --git a/resources/lang/zh-CN/auth.php b/resources/lang/zh_CN/auth.php
similarity index 100%
rename from resources/lang/zh-CN/auth.php
rename to resources/lang/zh_CN/auth.php
diff --git a/resources/lang/zh-CN/common.php b/resources/lang/zh_CN/common.php
similarity index 100%
rename from resources/lang/zh-CN/common.php
rename to resources/lang/zh_CN/common.php
diff --git a/resources/lang/zh-CN/error.php b/resources/lang/zh_CN/error.php
similarity index 100%
rename from resources/lang/zh-CN/error.php
rename to resources/lang/zh_CN/error.php
diff --git a/resources/lang/zh-CN/notification.php b/resources/lang/zh_CN/notification.php
similarity index 99%
rename from resources/lang/zh-CN/notification.php
rename to resources/lang/zh_CN/notification.php
index 220cbae2..d2e5b54f 100644
--- a/resources/lang/zh-CN/notification.php
+++ b/resources/lang/zh_CN/notification.php
@@ -32,4 +32,4 @@ return [
         'download' => '下载',
         'total'    => '总计',
     ],
-];
+];
\ No newline at end of file
diff --git a/resources/lang/zh-CN/pagination.php b/resources/lang/zh_CN/pagination.php
similarity index 100%
rename from resources/lang/zh-CN/pagination.php
rename to resources/lang/zh_CN/pagination.php
diff --git a/resources/lang/zh-CN/passwords.php b/resources/lang/zh_CN/passwords.php
similarity index 100%
rename from resources/lang/zh-CN/passwords.php
rename to resources/lang/zh_CN/passwords.php
diff --git a/resources/lang/zh-CN/user.php b/resources/lang/zh_CN/user.php
similarity index 100%
rename from resources/lang/zh-CN/user.php
rename to resources/lang/zh_CN/user.php
diff --git a/resources/lang/zh-CN/validation.php b/resources/lang/zh_CN/validation.php
similarity index 100%
rename from resources/lang/zh-CN/validation.php
rename to resources/lang/zh_CN/validation.php
diff --git a/resources/views/auth/layouts.blade.php b/resources/views/auth/layouts.blade.php
index c8d99d7b..8a9a13a6 100644
--- a/resources/views/auth/layouts.blade.php
+++ b/resources/views/auth/layouts.blade.php
@@ -41,7 +41,7 @@
                                 <a class="dropdown-item" href="{{route('lang', ['locale' => 'en'])}}" role="menuitem">
                                     <i class="flag-icon flag-icon-gb"></i>
                                     <span style="padding: inherit;">English</span></a>
-                                <a class="dropdown-item" href="{{route('lang', ['locale' => 'zh-CN'])}}" role="menuitem">
+                                <a class="dropdown-item" href="{{route('lang', ['locale' => 'zh_CN'])}}" role="menuitem">
                                     <i class="flag-icon flag-icon-cn"></i>
                                     <span style="padding: inherit;">简体中文</span></a>
                             </div>
diff --git a/resources/views/user/layouts.blade.php b/resources/views/user/layouts.blade.php
index 6c8c52eb..172f52ca 100644
--- a/resources/views/user/layouts.blade.php
+++ b/resources/views/user/layouts.blade.php
@@ -51,7 +51,7 @@
                             <a class="dropdown-item" href="{{route('lang', ['locale' => 'en'])}}" role="menuitem">
                                 <i class="flag-icon flag-icon-gb"></i>
                                 <span style="padding: inherit;">English</span></a>
-                            <a class="dropdown-item" href="{{route('lang', ['locale' => 'zh-CN'])}}" role="menuitem">
+                            <a class="dropdown-item" href="{{route('lang', ['locale' => 'zh_CN'])}}" role="menuitem">
                                 <i class="flag-icon flag-icon-cn"></i>
                                 <span style="padding: inherit;">简体中文</span></a>
                         </div>