> ## Documentation Index
> Fetch the complete documentation index at: https://docs.markifact.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Version

> Updates a Google Tag Manager container version's name or description

Updates a Google Tag Manager container version's name or description.

|                       |                       |
| --------------------- | --------------------- |
| **App**               | Google Tag Manager    |
| **Operation ID**      | `gtm_update_version`  |
| **Type**              | Action                |
| **Connection**        | `gtm` (required)      |
| **Credits per run**   | 1                     |
| **Agent / MCP tool**  | Yes                   |
| **Requires approval** | Yes (write operation) |

## Inputs

| Field         | Type           | Required | Default | Description                                                                                             |
| ------------- | -------------- | -------- | ------- | ------------------------------------------------------------------------------------------------------- |
| `account`     | DynamicAccount | Yes      | -       | Select the Google Tag Manager account.                                                                  |
| `container`   | DynamicAccount | Yes      | -       | Select the container.                                                                                   |
| `version`     | DynamicAccount | Yes      | -       | Select the container version, or provide a version ID from gtm\_list\_versions or gtm\_create\_version. |
| `name`        | string         | No       | -       | New name for the version.                                                                               |
| `description` | string         | No       | -       | New description for the version.                                                                        |

## Output

**Type**: `Dict`

Returns the updated containerVersion as provided by the Tag Manager API.