diff --git a/resources/lang/ja/auth.php b/resources/lang/ja/auth.php
index e5506df29..c3ad779e5 100644
--- a/resources/lang/ja/auth.php
+++ b/resources/lang/ja/auth.php
@@ -13,7 +13,7 @@ return [
     |
     */
 
-    'failed' => 'These credentials do not match our records.',
-    'throttle' => 'Too many login attempts. Please try again in :seconds seconds.',
+    'failed' => 'これらの認証情報は正しくありません。',
+    'throttle' => 'ログイン試行回数が多すぎます。 :seconds 秒後にもう一度お試しください。',
 
 ];