diff --git a/index.html b/index.html
index f747d600e..7b2c04b25 100644
--- a/index.html
+++ b/index.html
@@ -610,11 +610,11 @@ <h2 id="downloads">
 
     <table>
       <tr>
-        <td><a class="punch" href="backbone.js">Development Version (1.3.3)</a></td>
+        <td><a class="punch" href="backbone.js">Development Version (1.4.0)</a></td>
         <td class="text"><i>72kb, Full source, tons of comments</i></td>
       </tr>
       <tr>
-        <td><a class="punch" href="backbone-min.js">Production Version (1.3.3)</a></td>
+        <td><a class="punch" href="backbone-min.js">Production Version (1.4.0)</a></td>
         <td class="text" style="line-height: 16px;">
           <i>7.9kb, Packed and gzipped</i><br />
           <small>(<a href="backbone-min.map">Source Map</a>)</small>