diff --git a/api/templates/change_mail_confirm_new_template_en-US.html b/api/templates/change_mail_confirm_new_template_en-US.html
index 45f971741b..88721e787c 100644
--- a/api/templates/change_mail_confirm_new_template_en-US.html
+++ b/api/templates/change_mail_confirm_new_template_en-US.html
@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;
diff --git a/api/templates/change_mail_confirm_new_template_zh-CN.html b/api/templates/change_mail_confirm_new_template_zh-CN.html
index 4373ca93bf..25336ea1a1 100644
--- a/api/templates/change_mail_confirm_new_template_zh-CN.html
+++ b/api/templates/change_mail_confirm_new_template_zh-CN.html
@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;
diff --git a/api/templates/change_mail_confirm_old_template_en-US.html b/api/templates/change_mail_confirm_old_template_en-US.html
index 5e6ff245d8..b20306aa87 100644
--- a/api/templates/change_mail_confirm_old_template_en-US.html
+++ b/api/templates/change_mail_confirm_old_template_en-US.html
@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;
diff --git a/api/templates/change_mail_confirm_old_template_zh-CN.html b/api/templates/change_mail_confirm_old_template_zh-CN.html
index 2734593216..4a3e35cfb6 100644
--- a/api/templates/change_mail_confirm_old_template_zh-CN.html
+++ b/api/templates/change_mail_confirm_old_template_zh-CN.html
@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;
@@ -109,7 +109,7 @@
       <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
     </div>
     <p class="title">验证您的邮箱变更请求</p>
-    <div class="description"> 
+    <div class="description">
       <p class="content1">我们收到了一个变更您 Dify 账户关联邮箱地址的请求。</p>
       <p class="content2">我们收到了一个变更您 Dify 账户关联邮箱地址的请求。</p>
       <p class="content3">此验证码仅在接下来的5分钟内有效：</p>