diff --git a/backend/locales/zh_Hans.json b/backend/locales/zh-CN.json
similarity index 100%
rename from backend/locales/zh_Hans.json
rename to backend/locales/zh-CN.json
diff --git a/backend/locales/zh_Hant.json b/backend/locales/zh-TW.json
similarity index 100%
rename from backend/locales/zh_Hant.json
rename to backend/locales/zh-TW.json