---
title: "Update a single cluster certificate."
method: PUT
path: "/v1/cluster/update_cert"
tags: ["Cluster"]
deprecated: true
---

# Update a single cluster certificate.

`PUT /v1/cluster/update_cert`

> **Deprecated.**

Replace a single cluster certificate and apply it across the cluster. Deprecated, use PUT /v1/cluster/certificates.

## Request body

- ClusterCertificateUpdate — Cluster certificate payload used for updates.
  - `certificate` string — PEM-encoded certificate chain.
  - `key` string — PEM-encoded private key.
  - `name` string — Certificate type name.

## Response `200`

Cluster certificate updated successfully.

## Other responses

- `400` — Bad Request
- `403` — Forbidden
- `406` — Not Acceptable
- `409` — Conflict
- `500` — Internal Server Error

## Changes

- **2026-04-21** `6b64152fc37b` — 1 info
  - endpoint added
- **2026-01-23** `9fdf3bc7ad77` — 1 info
  - api path removed with deprecation

[Change history](https://skmtc.dev/redis/apis/redis-software-rest-api/changes/v1/cluster/update_cert/put.md)

---

[API](https://skmtc.dev/redis/apis/redis-software-rest-api.md) · [All operations](https://skmtc.dev/redis/apis/redis-software-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/redis/redis-software-rest-api/revisions/caec2005b95b/schema)