diff --git a/_posts/help/1970-01-01-raspbian.md b/_posts/help/1970-01-01-raspbian.md
index bd6cf2a..bb53f69 100644
--- a/_posts/help/1970-01-01-raspbian.md
+++ b/_posts/help/1970-01-01-raspbian.md
@@ -39,6 +39,8 @@ Raspbian 是树莓派的开发与维护机构 The Raspbeery Pi Foundation
 
 *  wheezy
 *  jessie
+*  stretch
+*  buster
 
 注：Raspbian 系统由于从诞生开始就基于（为了armhf，也必须基于）当时还是
 testing 版本的 7.0/wheezy，所以 Raspbian 不倾向于使用 stable/testing
@@ -53,7 +55,8 @@ testing 版本的 7.0/wheezy，所以 Raspbian 不倾向于使用 stable/testing
 	<select class="form-control release-select" data-template="#apt-template" data-target="#apt-content">
 	  <option data-release="wheezy">Debian 7 (wheezy)</option>
 	  <option data-release="jessie">Debian 8 (jessie)</option>
-	  <option data-release="stretch" selected>Debian 9 (stretch)</option>
+	  <option data-release="stretch">Debian 9 (stretch)</option>
+	  <option data-release="buster" selected>Debian 10 (buster)</option>
 	</select>
 </div>
 </form>