diff --git a/.gitignore b/.gitignore
index 1bae333..cd45ae3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,4 +45,5 @@ src/angular-node.html
 src/angular-tree.html
 src/vue-node.html
 src/vue-tree.html
-!*.config.js
\ No newline at end of file
+!*.config.js
+demo/*-*.png
diff --git a/demo/angular/index.ejs.html b/demo/angular/index.ejs.html
index f7638ad..f952d57 100644
--- a/demo/angular/index.ejs.html
+++ b/demo/angular/index.ejs.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" href="../../dist/tree.min.css" />
     <style>
       .my-custom-icon {
-        background-image: url("../tree-icon.png") !important;
+        background-image: url("../<%=demoTreeIconPng %>") !important;
         background-position: center center !important;
         background-size: auto;
       }
diff --git a/demo/react/index.ejs.html b/demo/react/index.ejs.html
index 23c36f7..6f66174 100644
--- a/demo/react/index.ejs.html
+++ b/demo/react/index.ejs.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" href="../../dist/tree.min.css" />
     <style>
       .my-custom-icon {
-        background-image: url("../tree-icon.png") !important;
+        background-image: url("../<%=demoTreeIconPng %>") !important;
         background-position: center center !important;
         background-size: auto;
       }
diff --git a/demo/rev-static.config.js b/demo/rev-static.config.js
index f584e16..e6d481b 100644
--- a/demo/rev-static.config.js
+++ b/demo/rev-static.config.js
@@ -5,7 +5,8 @@ module.exports = {
         "demo/react.bundle.js",
         "demo/react/index.ejs.html",
         "demo/angular.bundle.js",
-        "demo/angular/index.ejs.html"
+        "demo/angular/index.ejs.html",
+        "demo/tree-icon.png",
     ],
     outputFiles: file => file.replace(".ejs", ""),
     json: false,
diff --git a/demo/vue/index.ejs.html b/demo/vue/index.ejs.html
index b00652c..dad20f5 100644
--- a/demo/vue/index.ejs.html
+++ b/demo/vue/index.ejs.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" href="../../dist/tree.min.css" />
     <style>
       .my-custom-icon {
-        background-image: url("../tree-icon.png") !important;
+        background-image: url("../<%=demoTreeIconPng %>") !important;
         background-position: center center !important;
         background-size: auto;
       }
diff --git a/package.json b/package.json
index 97e8049..f76548f 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "less": "2.7.2",
     "react": "15.5.4",
     "react-dom": "15.5.4",
-    "rev-static": "2.1.2",
+    "rev-static": "2.4.0",
     "rimraf": "2.6.1",
     "rxjs": "5.3.0",
     "stylelint": "7.10.1",