diff --git a/apps/readest-app/src/app/library/page.tsx b/apps/readest-app/src/app/library/page.tsx
index 5a04210c..6d245114 100644
--- a/apps/readest-app/src/app/library/page.tsx
+++ b/apps/readest-app/src/app/library/page.tsx
@@ -366,7 +366,7 @@ const LibraryPageContent = ({ searchParams }: { searchParams: ReadonlyURLSearchP
     for (const file of files) {
       try {
         const book = await appService?.importBook(file, library);
-        setLibrary(library);
+        setLibrary([...library]);
         if (user && book && !book.uploadedAt && settings.autoUpload) {
           console.log('Uploading book:', book.title);
           handleBookUpload(book);
diff --git a/apps/readest-app/src/components/UpdaterWindow.tsx b/apps/readest-app/src/components/UpdaterWindow.tsx
index 9cf8ee5f..ce4fcbca 100644
--- a/apps/readest-app/src/components/UpdaterWindow.tsx
+++ b/apps/readest-app/src/components/UpdaterWindow.tsx
@@ -62,6 +62,7 @@ export const UpdaterContent = ({ version }: { version?: string }) => {
   const _ = useTranslation();
   const [targetLang, setTargetLang] = useState('EN');
   const { translate } = useTranslator({
+    provider: 'azure',
     sourceLang: 'AUTO',
     targetLang,
   });
@@ -79,14 +80,7 @@ export const UpdaterContent = ({ version }: { version?: string }) => {
   const [downloaded, setDownloaded] = useState<number | null>(null);
 
   useEffect(() => {
-    const locale = getLocale();
-    let userLang = locale.split('-')[0] || 'en';
-    if (locale === 'zh-CN') {
-      userLang = 'zh-Hans';
-    } else if (locale.startsWith('zh')) {
-      userLang = 'zh-Hant';
-    }
-    setTargetLang(userLang.toUpperCase());
+    setTargetLang(getLocale());
   }, []);
 
   useEffect(() => {