diff --git a/Gruntfile.js b/Gruntfile.js
index 7a002fdafd..eae8afaf9f 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -443,7 +443,8 @@ module.exports = function(grunt) {
 		},
 		uglify: {
 			options: {
-				ASCIIOnly: true
+				ASCIIOnly: true,
+				screwIE8: false
 			},
 			core: {
 				expand: true,
diff --git a/package.json b/package.json
index 42abf033a6..6ed02b43c0 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "grunt-contrib-imagemin": "~1.0.0",
     "grunt-contrib-jshint": "~1.0.0",
     "grunt-contrib-qunit": "^1.2.0",
-    "grunt-contrib-uglify": "~1.0.1",
+    "grunt-contrib-uglify": "~2.0.0",
     "grunt-contrib-watch": "~1.0.0",
     "grunt-includes": "~0.5.1",
     "grunt-jsvalidate": "~0.2.2",