diff --git a/index-test.html b/index-test.html
index 26b7ab5..fc34cd8 100644
--- a/index-test.html
+++ b/index-test.html
@@ -10,8 +10,7 @@
         <link rel="stylesheet" href="jdd.css" type="text/css" media="screen">
         
         
-        <script src="http://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
-        <script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js" type="text/javascript" charset="utf-8"></script>
+        <script src="http://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
 
         <script src="jsl/jsl.format.js" type="text/javascript" charset="utf-8"></script>
         <script src="jsl/jsl.parser.js" type="text/javascript" charset="utf-8"></script>
diff --git a/index.html b/index.html
index 99c77d8..332d9d4 100644
--- a/index.html
+++ b/index.html
@@ -8,8 +8,7 @@
         <link rel="stylesheet" href="throbber.css" type="text/css" media="screen">
         <link rel="stylesheet" href="jdd.css" type="text/css" media="screen">
         
-        <script src="http://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
-        <script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js" type="text/javascript" charset="utf-8"></script>
+        <script src="http://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
 
         <script src="jsl/jsl.format.js" type="text/javascript" charset="utf-8"></script>
         <script src="jsl/jsl.parser.js" type="text/javascript" charset="utf-8"></script>