diff --git a/site/public/index.html b/site/public/index.html
index de49e836e..2c2c1b14e 100644
--- a/site/public/index.html
+++ b/site/public/index.html
@@ -11,12 +11,12 @@
       rel="shortcut icon"
       href="https://img.yzcdn.cn/zanui/vant/vant-2017-12-18.ico"
     />
-    <link href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css" rel="stylesheet" />
+    <link href="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.css" rel="stylesheet" />
     <title>Vant - 轻量、可靠的移动端 Vue 组件库</title>
   </head>
   <body ontouchstart>
     <div id="app"></div>
-    <script src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.js"></script>
     <!-- built files will be auto injected -->
   </body>
 </html>
diff --git a/src/grid/index.js b/src/grid/index.js
index 48ab8630a..15f37912f 100644
--- a/src/grid/index.js
+++ b/src/grid/index.js
@@ -7,7 +7,7 @@ export default createComponent({
   mixins: [ParentMixin('vanGrid')],
 
   props: {
-    gutter: Number,
+    gutter: [Number, String],
     square: Boolean,
     clickable: Boolean,
     columnNum: {
