# Updating an existing custom Email Design System

In Taxi, you can update an existing Email Design System by uploading or pasting new HTML.

To do this:

1. Head to the Email Design Systems tab
2. Select the Email Design System you want to update
3. Select the Actions dropdown and select Upload/Paste New HTML\
   If you do not see this option you will need to contact your account admin to give you permissions<br>

   ![](https://downloads.intercomcdn.com/i/o/531096282/aee82f11850e8375870ea754/Screenshot+2022-06-16+at+12.11.48.png)

4\. On the next page if you were not the last person to upload this Email Design System you will see a message telling you who it was last uploaded by

![](https://downloads.intercomcdn.com/i/o/255206555/3a87370a9aef804e20498dec/Screenshot+2020-10-13+at+14.28.59.png)

5\. Select the Upload a file or Paste HTML tab and select 'Update HTML'

6\. Before confirming you will see any changes since last revision. This will show:

* The names and labels of any modulezones, modules, editables and fields which are in the new upload that were not in the existing template
* The names and labels of any modulezones, modules, editables and fields which are not in the new upload that were in the existing template
* A summary text for any modulezones, modules, editables and fields which either are added or removed from the new upload that were in the existing template

![](https://downloads.intercomcdn.com/i/o/267243592/c772d75e030f231f3395044e/Screenshot+2020-11-17+at+14.08.33.png)

* If a field was deleted that was default version content

![](https://downloads.intercomcdn.com/i/o/273341742/c8aab53b87ed9f485c5171df/image.png)