diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1eb5d9e..60ad2a1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -57,7 +57,7 @@ jobs:
 
       # ビルドジョブでアップロードしたPDFをここでダウンロード
       - name: Download artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: pdf