diff --git a/plugins/update-check.user.js b/plugins/update-check.user.js
index 11e0ceec..3dce7390 100644
--- a/plugins/update-check.user.js
+++ b/plugins/update-check.user.js
@@ -29,7 +29,8 @@ window.plugin.updateCheck.getUrl = function(callback) {
 
   var url = 'http://iitc.jonatkins.com/versioncheck.php'
           + '?build=@@BUILDNAME@@'
-          + '&mobile='+((typeof android !== 'undefined' && android)?'1':'0');
+          + '&mobile='+((typeof android !== 'undefined' && android)?'1':'0')
+          + '&ts='+Date.now();  // append timestamp - ensures no cacheing of old data, even on mobile with the aggressive cache code
 
   if (callback) {
     url = url + '&callback='+callback