diff --git a/Gruntfile.js b/Gruntfile.js
index 528c0af8..ac9bf3f8 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -177,19 +177,19 @@ module.exports = function(grunt) {
           concurrency: 4,
           browsers: [
             { browserName: 'chrome' },
-            { browserName: 'firefox', platform: 'Linux' },
+            { browserName: 'firefox', platform: 'Linux' }
             // {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: 11,
+            //   platform: 'Windows 8.1'
+            // },
+            // {
+            //   browserName: 'internet explorer',
+            //   version: 10,
+            //   platform: 'Windows 8'
+            // }
           ]
         }
       },