diff --git a/i18n/ja.json b/i18n/ja.json
index e9c4319b..54650f04 100644
--- a/i18n/ja.json
+++ b/i18n/ja.json
@@ -214,8 +214,8 @@
     "Save document": "ペーストを保存",
     "Your IP is not authorized to create documents.": "あなたのIPアドレスにはペーストを作成する権限がありません。",
     "Trying to shorten a URL that isn't pointing at our instance.": "このインスタンスを指していないURLを短縮しようとしています。",
-    "Proxy error: Proxy URL is empty. This can be a configuration issue, like wrong or missing config keys.": "Proxy error: Proxy URL is empty. This can be a configuration issue, like wrong or missing config keys.",
-    "Proxy error: Error parsing proxy response. This can be a configuration issue, like wrong or missing config keys.": "Proxy error: Error parsing proxy response. This can be a configuration issue, like wrong or missing config keys.",
+    "Proxy error: Proxy URL is empty. This can be a configuration issue, like wrong or missing config keys.": "YOURLSの呼び出し中にエラーが発生しました。\"apiurl\"または\"signature\"等の設定に問題がある可能性があります。",
+    "Proxy error: Error parsing proxy response. This can be a configuration issue, like wrong or missing config keys.": "YOURLSレスポンスの解析中にエラーが発生しました。",
     "Proxy error: Bad response. This can be a configuration issue, like wrong or missing config keys or a temporary outage.": "Proxy error: Bad response. This can be a configuration issue, like wrong or missing config keys or a temporary outage.",
     "This secret message can only be displayed once. Would you like to see it now?": "This secret message can only be displayed once. Would you like to see it now?",
     "Yes, see it": "はい、使用します",