diff --git a/test/index.html b/test/index.html
index 4d01494..456599d 100644
--- a/test/index.html
+++ b/test/index.html
@@ -16,10 +16,10 @@
 <body>
   <div id="explorer"></div>
   <div id="overlay"></div>
-  <script src="./libs/jquery/jquery.js" type="text/javascript"></script>
-  <script src="./libs/ol3/ol.js" type="text/javascript"></script>
-  <script src="./libs/w2ui/w2ui.js" type="text/javascript"></script>
-  <script src="../dist/olexp.js" type="text/javascript"></script>
+  <script src="./libs/jquery/jquery.js"></script>
+  <script src="./libs/ol3/ol.js"></script>
+  <script src="./libs/w2ui/w2ui.js"></script>
+  <script src="../dist/olexp.js"></script>
   <script>
     const explorer = new olexp.Explorer('explorer');
     const {group, overlay, position, tile, vector} = (() => {
