diff --git a/examples/index.html b/examples/index.html
index aa3fb1d..74bbcce 100644
--- a/examples/index.html
+++ b/examples/index.html
@@ -13,12 +13,8 @@
 	<div id="skin_container"></div>
 
 	<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/three.js/92/three.min.js"></script>
-	<script type="text/javascript" src="../build/utils.js"></script>
-	<script type="text/javascript" src="../build/orbit_controls.js"></script>
-	<script type="text/javascript" src="../build/animation.js"></script>
-	<script type="text/javascript" src="../build/model.js"></script>
-	<script type="text/javascript" src="../build/viewer.js"></script>
 
+	<!-- need to bundle into one single js file -->
 
 	<script>
 		let skinViewer = new skinview3d.SkinViewer({