# Update a DID

Follow these instructions to update a did:cheqd DID from ACA-Py Agent.

> ⚠️ **Important...**
>
> Your wallet must have the key(s) which were generated when the DID was created, without them signing will fail.

## Update DID

To update an existing DID, you must pass the `did` id and the complete `didDocument`in the request body. The main field that is updated using this method os the `service` object of the DID.

{% openapi src="<https://3569764573-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPVAMvpKH7PYzvXA6u6Cn%2Fuploads%2F6otKdslTxD5vA4zstkSG%2Fswagger.json?alt=media&token=4be3b6bb-f452-4d59-b61c-c6dc0e597b74>" path="/did/cheqd/update" method="post" %}
[swagger.json](https://3569764573-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPVAMvpKH7PYzvXA6u6Cn%2Fuploads%2F6otKdslTxD5vA4zstkSG%2Fswagger.json?alt=media\&token=4be3b6bb-f452-4d59-b61c-c6dc0e597b74)
{% endopenapi %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.cheqd.io/product/sdk/aca-py/dids/update-did.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.