Came across this today and thought it might help
http://www.w3schools.com/html/html5_browsers.asp
Scroll down to the Complete HTML5Shiv Solution. Specifically, adding this line of code to the <head>
<!--[if lt IE 9]>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script> <![endif]-->