diff --git a/Gruntfile.js b/Gruntfile.js
index 5f7b6b342e..cefef94d51 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -370,7 +370,7 @@ module.exports = function (grunt) {
       all: {
         options: {
           build: process.env.TRAVIS_JOB_ID,
-          concurrency: 10,
+          throttled: 10,
           maxRetries: 3,
           urls: ['http://127.0.0.1:3000/js/tests/index.html'],
           browsers: grunt.file.readYAML('grunt/sauce_browsers.yml')