diff --git a/.travis.yml b/.travis.yml
index fcaf70c..7e5df6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ script: make $COMMAND
 env:
   matrix:
     - COMMAND=test
-    #- COMMAND=test-browser
+    - COMMAND=test-browser
   global:
     - secure: FsU9623CV4X1G3WHvq2H0XHjDYxvfSMdWdKrAuTSZB9TsJlQ0UAIKbHNBzxSBo6/1xv1ZYyuPZvJnrkHAqNOVGYr0MiIINPt0jDmM3anl03lbaVwwpWcwxgslFGbfVufKKKrYAPF0UDS6uNeZtYP4fs2xlao7F9BaanpARiK5TY=
     - secure: PZeRlTvq67EBo1yXthMK2bKeCn5fVA3qCtFZ0m38XZDi8cj6wfXaLGoELrrtSNGFhZt2xU0DLQ+w0y2vC+gTOzWqbAw1Cedri97c514oX+QFvDqRKCbrKkGR9DHW6jUxOL1YrSfto21+CEsZEcQsYBTYFwnAKxmT3UIXCCgU+JI=
diff --git a/Gruntfile.js b/Gruntfile.js
index 0c126a8..c5298ed 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -60,6 +60,7 @@ module.exports = function(grunt) {
           urls: ['http://127.0.0.1:9999/test/browser/test.html'],
           build: process.env.TRAVIS_JOB_ID || ('local' + ~~(Math.random()*1000)),
           browsers: browsers,
+          concurrency: 3,
           testname: process.env.SAUCE_PROJ || 'mocha tests'
         }
       }
diff --git a/package.json b/package.json
index c1ed361..a9360e4 100644
--- a/package.json
+++ b/package.json
@@ -27,9 +27,9 @@
                         "lodash":    "2.4.1",
                         "async":     "0.2.10",
 
-                        "grunt": "~0.4.0",
+                        "grunt": "~0.4.4",
                         "grunt-cli": "~0.1.13",
-                        "grunt-saucelabs": "~5.0.1",
+                        "grunt-saucelabs": "~5.1.1",
                         "grunt-contrib-connect": "~0.7.1"
                       }
 }