diff --git a/index.html b/index.html
index 10baf691..e93ec926 100644
--- a/index.html
+++ b/index.html
@@ -183,9 +183,8 @@
                     <pre class="prettyprint">bower install vis</pre>
                     <h3>link from cdnjs.com</h3>
                     <p>
-                        <a href="https://cdnjs.cloudflare.com/ajax/libs/vis/3.12.0/vis.min.js" target="_blank">vis.min.js</a> <br>
-                        <a href="https://cdnjs.cloudflare.com/ajax/libs/vis/3.12.0/vis.min.css" target="_blank">vis.min.css</a> <br>
-                        (version 3.12.0, warning: this is an outdated version)
+                        <a href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.1.0/vis.min.js" target="_blank">vis.min.js</a> <br>
+                        <a href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.1.0/vis.min.css" target="_blank">vis.min.css</a> <br>
                     </p>
                     <h3>download</h3>
                     <p>