---
title: "Upgrade an agent"
method: POST
path: "/api/fleet/agents/{agentId}/upgrade"
tags: ["Elastic Agent actions"]
---

# Upgrade an agent

`POST /api/fleet/agents/{agentId}/upgrade`

**Spaces method and path for this operation:**

<div><span class="operation-verb post">post</span>&nbsp;<span class="operation-path">/s/{space_id}/api/fleet/agents/{agentId}/upgrade</span></div>

Refer to [Spaces](https://www.elastic.co/docs/deploy-manage/manage-spaces) for more information.

Upgrade a specific agent to a newer version.<br/><br/>[Required authorization] Route required privileges: fleet-agents-all.

## Path parameters

- `agentId` string, required

## Headers

- `kbn-xsrf` string, required

## Request body

- object
  - `force` boolean
  - `skipRateLimitCheck` boolean
  - `source_uri` string
  - `version` string, required

## Response `200`

Successful response

- object

## Other responses

- `400` — Bad Request

---

[API](https://skmtc.net/elastic/apis/kibana-apis.md) · [All operations](https://skmtc.net/elastic/apis/kibana-apis/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/elastic/kibana-apis/versions/531c9e2a7d23/schema)