diff --git a/js/index.js b/js/index.js
index f050fff..d461801 100644
--- a/js/index.js
+++ b/js/index.js
@@ -217,10 +217,10 @@ function addDemoGraphic8(graphicLayer) {
 
 function addDemoGraphic9(graphicLayer) {
   const graphic = new mars3d.graphic.ModelEntity({
-    name: "消防员",
+   name: "警车",
     position: [116.4, 30.9, 1000],
     style: {
-      url: "//data.mars3d.cn/gltf/mars/firedrill/xiaofangyuan-run.gltf",
+      url: "//data.mars3d.cn/gltf/mars/jingche/jingche.gltf",
       scale: 16,
       minimumPixelSize: 100
     },