diff --git a/README.md b/README.md
index a47d42e18..958a9d883 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,12 @@ Requires [Node.js](https://nodejs.org/) `^16.13.0` + [PostgreSQL](https://postgr
 node -e "$(printf "%s" "$(curl -fsSL https://raw.githubusercontent.com/logto-io/logto/HEAD/install.js)")"
 ```
 
+## Language support
+
+```ts
+const languages = ['English', '简体中文', 'Türkçe', '한국어'];
+```
+
 ## Bug report, feature request, feedback
 
 - Our team takes security seriously, especially when it relates to identity. If you find any existing or potential security issues, please do not hesitate to email 🔒 [security@logto.io](mailto:security@logto.io).
diff --git a/packages/phrases-ui/src/types.ts b/packages/phrases-ui/src/types.ts
index 2d9483d09..88dd08aa8 100644
--- a/packages/phrases-ui/src/types.ts
+++ b/packages/phrases-ui/src/types.ts
@@ -14,7 +14,7 @@ export enum Language {
 
 export const languageOptions = [
   { value: Language.English, title: 'English' },
-  { value: Language.Chinese, title: '中文' },
-  { value: Language.Turkish, title: 'Turkish' },
+  { value: Language.Chinese, title: '简体中文' },
+  { value: Language.Turkish, title: 'Türkçe' },
   { value: Language.Korean, title: '한국어' },
 ];
diff --git a/packages/phrases/src/types.ts b/packages/phrases/src/types.ts
index 8c5ef221d..d77236169 100644
--- a/packages/phrases/src/types.ts
+++ b/packages/phrases/src/types.ts
@@ -1,14 +1,11 @@
-/* eslint-disable @typescript-eslint/consistent-indexed-object-style */
 import { z } from 'zod';
 
 /* Copied from i18next/index.d.ts */
 export type Resource = Record<Language, ResourceLanguage>;
 
-export interface ResourceLanguage {
-  [namespace: string]: ResourceKey;
-}
+export type ResourceLanguage = Record<string, ResourceKey>;
 
-export type ResourceKey = string | { [key: string]: unknown };
+export type ResourceKey = string | Record<string, unknown>;
 
 export enum Language {
   English = 'en',
@@ -21,9 +18,7 @@ export const languageEnumGuard = z.nativeEnum(Language);
 
 export const languageOptions = [
   { value: Language.English, title: 'English' },
-  { value: Language.Chinese, title: '中文' },
+  { value: Language.Chinese, title: '简体中文' },
   { value: Language.Turkish, title: 'Türkçe' },
   { value: Language.Korean, title: '한국어' },
 ];
-
-/* eslint-enable @typescript-eslint/consistent-indexed-object-style */