diff --git a/.github/workflows/manual-epub.yml b/.github/workflows/manual-epub.yml
index 58f9b99..1887ea6 100644
--- a/.github/workflows/manual-epub.yml
+++ b/.github/workflows/manual-epub.yml
@@ -11,7 +11,7 @@ jobs:
       - name: Convert ebook
         run: ebook-convert user_guide/index.html koreader_user_guide.epub
       - name: Upload
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: KOReader Manual EPUB
           path: koreader_user_guide.epub