diff --git a/README.md b/README.md
index e031807..a671989 100644
--- a/README.md
+++ b/README.md
@@ -77,10 +77,10 @@ VXETablePluginExportPDF.setup({
   ref="xTable"
   height="600"
   :data="tableData">
-  <vxe-table-column type="index" width="60"></vxe-table-column>
-  <vxe-table-column field="name" title="Name"></vxe-table-column>
-  <vxe-table-column field="age" title="Age"></vxe-table-column>
-  <vxe-table-column field="date" title="Date"></vxe-table-column>
+  <vxe-column type="seq" width="60"></vxe-column>
+  <vxe-column field="name" title="Name"></vxe-column>
+  <vxe-column field="age" title="Age"></vxe-column>
+  <vxe-column field="date" title="Date"></vxe-column>
 </vxe-table>
 ```
 
@@ -89,12 +89,9 @@ export default {
   data () {
     return {
       tableData: [
-        {
-          id: 100,
-          name: 'test',
-          age: 26,
-          date: null
-        }
+        { id: 100, name: 'test', age: 26, date: null },
+        { id: 101, name: 'test1', age: 30, date: null },
+        { id: 102, name: 'test2', age: 34, date: null }
       ]
     }
   },
diff --git a/index.ts b/index.ts
index 6d6b85f..1276991 100644
--- a/index.ts
+++ b/index.ts
@@ -195,7 +195,7 @@ export const VXETablePluginExportPDF = {
   }
 }
 
-if (typeof window !== 'undefined' && window.VXETable) {
+if (typeof window !== 'undefined' && window.VXETable && window.VXETable.use) {
   window.VXETable.use(VXETablePluginExportPDF)
 }
 
diff --git a/package.json b/package.json
index 111cb16..ea2f72b 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "prettier": "^2.1.2",
     "typescript": "^4.0.5",
     "vue": "^3.0.6",
-    "vxe-table": "^4.0.3",
+    "vxe-table": "^4.0.5",
     "xe-utils": "^3.1.11"
   },
   "peerDependencies": {