diff --git a/config/application.rb b/config/application.rb
index 758d2f81..88375770 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -25,7 +25,7 @@ module DocuSeal
 
     config.active_storage.draw_routes = ENV['MULTITENANT'] != 'true'
 
-    config.i18n.available_locales = %i[en en-US en-GB es-ES fr-FR pt-PT de-DE it-IT es it de fr pl uk cs pt he nl ar ko]
+    config.i18n.available_locales = %i[en en-US en-GB es-ES fr-FR pt-PT de-DE it-IT es it de fr pl uk cs pt he nl ar ko jp]
     config.i18n.fallbacks = [:en]
 
     config.exceptions_app = ->(env) { ErrorsController.action(:show).call(env) }