diff --git a/public/favicon.ico b/public/favicon.ico
index 96762d8..7ef7c8e 100644
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/install/index.php b/public/install/index.php
index 6caef78..d70aa29 100644
--- a/public/install/index.php
+++ b/public/install/index.php
@@ -333,8 +333,8 @@ switch ($step) {
             // 清理掉管理员表和用户表
             mysqli_query($conn, "truncate table {$dbPrefix}admin");
             mysqli_query($conn, "truncate table {$dbPrefix}user");
-            $addAdminSql = "INSERT INTO `{$dbPrefix}admin` (`id`, `uid`,`username`,`realname`, `nickname`,  `password`, `role_id`, `status`, `create_time`, `create_user`) VALUES" .
-                "(1, 1,'" . $username . "', '超级管理员' ,'超级管理员','" . $password . "', 1, 1, $time, '1')";
+            $addAdminSql = "INSERT INTO `{$dbPrefix}admin` (`id`, `uid`,`username`,`realname`, `nickname`, `avatar`, `password`, `role_id`, `status`, `create_time`, `create_user`) VALUES" .
+                "(1, 1,'" . $username . "', '超级管理员' ,'超级管理员','/static/admin/images/logo2.png','" . $password . "', 1, 1, $time, '1')";
             $addUserSql = "INSERT INTO `{$dbPrefix}user` (`id`, `username`, `nickname`, `password`, `status`, `is_admin`, `create_time`) VALUES " .
                 "(1,'" . $username . "', '超级管理员' ,'" . $password . "', 1, 1, $time);";
             //插入前台用户和管理员
diff --git a/public/static/admin/images/logo-ico.png b/public/static/admin/images/logo-ico.png
index eb1c65a..be6ca11 100644
Binary files a/public/static/admin/images/logo-ico.png and b/public/static/admin/images/logo-ico.png differ
diff --git a/public/static/admin/images/logo2.png b/public/static/admin/images/logo2.png
index f240b19..be6ca11 100644
Binary files a/public/static/admin/images/logo2.png and b/public/static/admin/images/logo2.png differ
diff --git a/public/static/admin/images/logo3.png b/public/static/admin/images/logo3.png
deleted file mode 100644
index 95ea271..0000000
Binary files a/public/static/admin/images/logo3.png and /dev/null differ