End of support notice: On October 7th, 2026, Amazon will discontinue support for Amazon IoT Greengrass Version 1. After October 7th, 2026, you will no longer be able to access the Amazon IoT Greengrass V1 resources. For more information, please visit [Migrate from Amazon IoT Greengrass Version 1](https://docs.amazonaws.cn/greengrass/v2/developerguide/migrate-from-v1.html).

# UpdateDefinitionRequestBody
<a name="parameters-updatedefinitionrequestbody"></a>

```
{
"Name": "string"
}
```

UpdateDefinitionRequestBody  
in: body  
required: true  


properties  
Name: The name of the definition. Required: true; Type: string