diff --git a/apps/client/public/locales/ja-JP/translation.json b/apps/client/public/locales/ja-JP/translation.json
index 720ed54d..6ab411de 100644
--- a/apps/client/public/locales/ja-JP/translation.json
+++ b/apps/client/public/locales/ja-JP/translation.json
@@ -347,7 +347,7 @@
   "Members added successfully": "メンバーを追加しました",
   "Member removed successfully": "メンバーが削除されました",
   "Member role updated successfully": "メンバーのロールを更新しました",
-  "Created by: <b>{{creatorName}}</b>": "作成者： <b>{{creatorName}}</b>",
+  "Created by: <b>{{creatorName}}</b>": "作成者: <b>{{creatorName}}</b>",
   "Created at: {{time}}": "が作成しました：{{time}}",
   "Edited by {{name}} {{time}}": "最終編集: {{name}} {{time}}",
   "Word count: {{wordCount}}": "ワード数: {{wordCount}}",
@@ -384,7 +384,7 @@
   "Share deleted successfully": "共有が正常に削除されました",
   "Share not found": "共有が見つかりません",
   "Failed to share page": "ページの共有に失敗しました",
-  "Copy page": "Copy page",
-  "Copy page to a different space.": "Copy page to a different space.",
-  "Page copied successfully": "Page copied successfully"
+  "Copy page": "ページをコピー",
+  "Copy page to a different space.": "ページを別のスペースにコピーします。",
+  "Page copied successfully": "ページのコピーに成功しました"
 }