diff --git a/ja.ts b/ja.ts
index d93710c79..68b61e523 100644
--- a/ja.ts
+++ b/ja.ts
@@ -9640,7 +9640,7 @@ Reason: %1.</source>
     <message>
         <location filename="src/launcher/updater/PrismExternalUpdater.cpp" line="209"/>
         <source>Unknown Update Error</source>
-        <translation type="unfinished">不明な更新のエラー</translation>
+        <translation>アップデートの不明なエラー</translation>
     </message>
     <message>
         <location filename="src/launcher/updater/PrismExternalUpdater.cpp" line="210"/>