diff --git a/docs/demo/demo.js b/docs/demo/demo.js
index f8578de678..3762cb3819 100644
--- a/docs/demo/demo.js
+++ b/docs/demo/demo.js
@@ -105,11 +105,6 @@ function handleOutputChange() {
   updateLink();
 }
 
-function handleVersionChange() {
-  handleChange($markedVer, $markedVerElem.value);
-  updateVersion();
-}
-
 function handleChange(panes, visiblePane) {
   var active = null;
   for (var i = 0; i < panes.length; i++) {