diff --git a/static/images/avatar.jpg b/static/images/avatar.jpg
new file mode 100644
index 0000000..3d4a219
Binary files /dev/null and b/static/images/avatar.jpg differ
diff --git a/templates/default/sidebar.html b/templates/default/sidebar.html
index fd1e58a..fb0b4cb 100644
--- a/templates/default/sidebar.html
+++ b/templates/default/sidebar.html
@@ -2,7 +2,7 @@
 <aside class="sidebar">
     <!-- 博客信息 -->
     <div class="sidebar-widget blog-info">
-        <img src="/static/images/avatar.png" alt="头像" class="blog-avatar" onerror="this.src='data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%2280%22 height=%2280%22><rect fill=%22%231890ff%22 width=%2280%22 height=%2280%22/><text x=%2250%%22 y=%2250%%22 fill=%22white%22 text-anchor=%22middle%22 dy=%22.3em%22 font-size=%2232%22>B</text></svg>'">
+        <img src="/static/images/avatar.jpg" alt="头像" class="blog-avatar" onerror="this.src='data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%2280%22 height=%2280%22><rect fill=%22%231890ff%22 width=%2280%22 height=%2280%22/><text x=%2250%%22 y=%2250%%22 fill=%22white%22 text-anchor=%22middle%22 dy=%22.3em%22 font-size=%2232%22>B</text></svg>'">
         <div class="blog-name">{{.SiteName}}</div>
         <div class="blog-description">{{.SiteDesc}}</div>
         <div class="blog-stats">