diff --git a/index.html b/index.html
index 5f2767e9..fbd593c0 100644
--- a/index.html
+++ b/index.html
@@ -19,7 +19,7 @@
       <input id="m" autocomplete="off" /><button>Send</button>
     </form>
     <script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
-    <script src="http://code.jquery.com/jquery-1.11.1.js"></script>
+    <script src="https://code.jquery.com/jquery-1.11.1.js"></script>
     <script>
       var socket = io();
       $('form').submit(function(){