---
title: "Update a comment"
method: PUT
path: "/groups/{groupId}/artifacts/{artifactId}/versions/{versionExpression}/comments/{commentId}"
tags: ["Versions"]
---

# Update a comment

`PUT /groups/{groupId}/artifacts/{artifactId}/versions/{versionExpression}/comments/{commentId}`

Updates the value of a single comment in an artifact version.  Only the owner of the
comment can modify it.  The `artifactId`, unique `version` number, and `commentId` 
must be provided.

This operation can fail for the following reasons:

* No artifact with this `artifactId` exists (HTTP error `404`)
* No version with this `version` exists (HTTP error `404`)
* No comment with this `commentId` exists (HTTP error `404`)
* A server error occurred (HTTP error `500`)

## Request body

- NewComment
  - `value` string, required

## Response `204`

The value of the comment was successfully changed.

## Other responses

- `400` — Common response for all operations that can return a `400` error.
- `401` — Common response for all operations that can return a `401` error indicating authentication is required.
- `403` — Common response for all operations that can return a `403` error indicating the user is authenticated but not authorized.
- `404` — Common response for all operations that can return a `404` error.
- `500` — Common response for all operations that can fail with an unexpected server error.

---

[API](https://skmtc.net/apicurio/apis/apicurio-registry-api-v3.md) · [All operations](https://skmtc.net/apicurio/apis/apicurio-registry-api-v3/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/apicurio/apicurio-registry-api-v3/revisions/c39cb56d7dbc/schema)