diff --git a/.gitea/workflows/blog_hexo.yaml b/.gitea/workflows/blog_hexo.yaml
index 051b72c..fd41021 100644
--- a/.gitea/workflows/blog_hexo.yaml
+++ b/.gitea/workflows/blog_hexo.yaml
@@ -34,6 +34,4 @@ jobs:
           REMOTE_USER: ${{ secrets.REMOTE_USER }}
           TARGET: ${{ secrets.REMOTE_TARGET }}
           EXCLUDE: "/public/, /node_modules/"
-      - name: Deploy to GitHub Pages
-        run: npm run deploy
       - run: echo "🍏 This job's status is ${{ job.status }}."
\ No newline at end of file
diff --git a/_config.butterfly.yml b/_config.butterfly.yml
index 7537c55..3d7db41 100644
--- a/_config.butterfly.yml
+++ b/_config.butterfly.yml
@@ -123,7 +123,7 @@ cover:
   position: both
   # When cover is not set, the default cover is displayed (當沒有設置cover時，默認的封面顯示)
   default_cover:
-    - /img/default_cover1.png
+    - /img/default_cover1.jpg
     - /img/default_cover2.png
     - /img/default_banner.png
     - /img/default_cover3.png