diff --git a/Gruntfile.js b/Gruntfile.js
index fd76518a..97cfff06 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -166,11 +166,10 @@ module.exports = function(grunt) {
           browsers: [
             {browserName: 'chrome'},
             {browserName: 'firefox', platform: 'Linux'},
-            {browserName: 'safari', version: 7, platform: 'OS X 10.9'},
-            {browserName: 'safari', version: 6, platform: 'OS X 10.8'},
+            {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
+            {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
             {browserName: 'internet explorer', version: 11, platform: 'Windows 8.1'},
-            {browserName: 'internet explorer', version: 10, platform: 'Windows 8'},
-            {browserName: 'internet explorer', version: 9, platform: 'Windows 7'}
+            {browserName: 'internet explorer', version: 10, platform: 'Windows 8'}
           ]
         }
       },