---
title: "Update a language"
method: PUT
path: "/projects/{project_id}:{branch}/languages/{lang_id}"
tags: ["Languages"]
---

# Update a language

`PUT /projects/{project_id}:{branch}/languages/{lang_id}`

Updates the properties of a language. Requires *Manage languages* admin right.

Requires <code>write_languages</code> OAuth access scope.

## Path parameters

- `project_id` string, required
- `branch` string, required
- `lang_id` number, required

## Request body

- object
  - `lang_iso` string — Language/locale code.
  - `lang_name` string — Language name.
  - `plural_forms` string[] — List of supported plural forms.

## Response `200`

OK

- object
  - `project_id` string
  - `language` Languages
    - `lang_id` number — A unique language identifier in the system.
    - `lang_iso` string — Language/locale code.
    - `lang_name` string — Language name.
    - `is_rtl` boolean — Whether the language is Right-To-Left.
    - `plural_forms` unknown[] — List of supported plural forms.
      - unknown
    - `cc_iso` string — Country code, associated with the language.

---

[API](https://skmtc.net/lokalise/apis/default-projects.md) · [All operations](https://skmtc.net/lokalise/apis/default-projects/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/lokalise/default-projects/revisions/7bceba421b12/schema)