diff --git a/frontend/src/i18n/index.ts b/frontend/src/i18n/index.ts
index 703a9940f..d7dae0060 100644
--- a/frontend/src/i18n/index.ts
+++ b/frontend/src/i18n/index.ts
@@ -30,6 +30,7 @@ export const SUPPORTED_LOCALES = {
 	'ja-JP': '日本語',
 	'hu-HU': 'Magyar',
 	'ar-SA': 'اَلْعَرَبِيَّةُ',
+	'fa-IR': 'فارسی',
 	'sl-SI': 'Slovenščina',
 	'pt-BR': 'Português Brasileiro',
 	'hr-HR': 'Hrvatski',
@@ -52,7 +53,7 @@ export const DEFAULT_LANGUAGE: SupportedLocale= 'en'
 
 export type ISOLanguage = string
 
-const RTL_LANGUAGES = ['ar-SA', 'he-IL'] as const
+const RTL_LANGUAGES = ['ar-SA', 'he-IL', 'fa-IR'] as const
 
 export function isRTLLanguage(locale: SupportedLocale): boolean {
 	return RTL_LANGUAGES.includes(locale as typeof RTL_LANGUAGES[number])
diff --git a/frontend/src/i18n/useDayjsLanguageSync.ts b/frontend/src/i18n/useDayjsLanguageSync.ts
index 21e3fd7d6..792a284cd 100644
--- a/frontend/src/i18n/useDayjsLanguageSync.ts
+++ b/frontend/src/i18n/useDayjsLanguageSync.ts
@@ -22,6 +22,7 @@ export const DAYJS_LOCALE_MAPPING = {
 	'ja-jp': 'ja',
 	'hu-hu': 'hu',
 	'ar-sa': 'ar-sa',
+	'fa-ir': 'fa',
 	'sl-si': 'sl',
 	'pt-br': 'pt',
 	'hr-hr': 'hr',
@@ -55,6 +56,7 @@ export const DAYJS_LANGUAGE_IMPORTS = {
 	'ja-jp': () => import('dayjs/locale/ja'),
 	'hu-hu': () => import('dayjs/locale/hu'),
 	'ar-sa': () => import('dayjs/locale/ar-sa'),
+	'fa-ir': () => import('dayjs/locale/fa'),
 	'sl-si': () => import('dayjs/locale/sl'),
 	'pt-br': () => import('dayjs/locale/pt-br'),
 	'hr-hr': () => import('dayjs/locale/hr'),