diff --git a/assets/mailer_templates/build_production/workspace_invitation.html b/assets/mailer_templates/build_production/workspace_invitation.html
index 5029ca57..c1a0a57e 100644
--- a/assets/mailer_templates/build_production/workspace_invitation.html
+++ b/assets/mailer_templates/build_production/workspace_invitation.html
@@ -47,12 +47,12 @@
         <tr>
           <td style="width: 552px; max-width: 100%">
             <div style="width: 100%; text-align: center">
-              <img src="{{ .UserIconURL }}" width="48px" height="48px" alt="{{ .UserName }}" style="max-width: 100%; vertical-align: middle; line-height: 1; overflow: hidden; border-radius: 9999px; object-fit: cover">
+              <img src="{{ user_icon_url }}" width="48px" height="48px" alt="{{ username }}" style="max-width: 100%; vertical-align: middle; line-height: 1; overflow: hidden; border-radius: 9999px; object-fit: cover">
             </div>
             <p style="width: 100%; white-space: normal; overflow-wrap: break-word; text-align: center; font-size: 24px">
-              <span style="font-size: 30px; font-weight: 700">{{ .UserName }}</span>
+              <span style="font-size: 30px; font-weight: 700">{{ username }}</span>
               <span>invited to Join</span>
-              <span style="font-size: 30px; font-weight: 700;">{{ .WorkspaceName }}</span>
+              <span style="font-size: 30px; font-weight: 700;">{{ workspace_name }}</span>
               <span>on AppFlowy</span>
             </p>
             <div role="separator" style="background-color: #cbd5e1; height: 1px; line-height: 1px; margin: 24px 20%">&zwj;</div>
@@ -65,7 +65,7 @@
                       </td>
                       <td style="width: 25%">
                         <div style="margin-right: 8px; height: 60px; width: 60px; overflow: hidden; border-radius: 16px; background-color: #fff; border: 2px solid black">
-                          <img src="{{ .WorkspaceIconURL }}" width="100%" height="100%" alt="{{ .WorkspaceName }}" style="max-width: 100%; vertical-align: middle; line-height: 1; overflow: hidden; object-fit: cover;">
+                          <img src="{{ workspace_icon_url }}" width="100%" height="100%" alt="{{ workspace_name }}" style="max-width: 100%; vertical-align: middle; line-height: 1; overflow: hidden; object-fit: cover;">
                         </div>
                       </td>
                     </tr>
@@ -73,14 +73,14 @@
                 </td>
                 <td style="width: 58.333333%">
                   <div style="margin-bottom: 8px; font-weight: 700">
-                    {{ .WorkspaceName }}
+                    {{ wokspace_name }}
                   </div>
-                  <div style="font-size: 14px; color: #64748b"> {{ .WorkspaceMembersCount }} members</div>
+                  <div style="font-size: 14px; color: #64748b"> {{ workspace_member_count }} members</div>
                 </td>
               </tr>
             </table>
             <div style="text-align: center;">
-              <a href="{{ .AcceptUrl }}" class="hover-opacity-90" style="margin-top: 32px; margin-bottom: 32px; display: inline-block; height: 34px; width: 60%; cursor: pointer; border-radius: 16px; padding: 16px 24px; color: #f8fafc; text-decoration: none; background-color: #9327ff; font-size: 20px; font-weight: 400; line-height: 34px">
+              <a href="{{ accept_url }}" class="hover-opacity-90" style="margin-top: 32px; margin-bottom: 32px; display: inline-block; height: 34px; width: 60%; cursor: pointer; border-radius: 16px; padding: 16px 24px; color: #f8fafc; text-decoration: none; background-color: #9327ff; font-size: 20px; font-weight: 400; line-height: 34px">
                 <!--[if mso]>
       <i style="mso-font-width: 150%; mso-text-raise: 30px" hidden>&emsp;</i>
     <![endif]-->
@@ -181,4 +181,4 @@
     </div>
   </div>
 </body>
-</html>
\ No newline at end of file
+</html>