diff --git a/Gruntfile.js b/Gruntfile.js
index 4adb40b..accc284 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -62,9 +62,9 @@ module.exports = function(grunt) {
     cssmin: {
       dist: {
         options: {
+          compatibility: "ie8",
           keepSpecialComments: 0,
-          report: "min",
-          selectorsMergeMode: "ie8"
+          report: "min"
         },
         files: {
           'dist/css/other.css': '<%= uncss.dist.dest %>'
diff --git a/package.json b/package.json
index ee37a6d..3af3109 100644
--- a/package.json
+++ b/package.json
@@ -48,17 +48,17 @@
     "grunt": "~0.4.2",
     "grunt-compare-size": "~0.4.0",
     "grunt-contrib-clean": "~0.5.0",
-    "grunt-contrib-connect": "~0.6.0",
+    "grunt-contrib-connect": "~0.7.0",
     "grunt-contrib-copy": "~0.5.0",
-    "grunt-contrib-cssmin": "~0.7.0",
+    "grunt-contrib-cssmin": "~0.8.0",
     "grunt-contrib-jshint": "~0.8.0",
     "grunt-contrib-watch": "~0.5.3",
     "grunt-lib-contrib": "~0.6.1",
     "grunt-processhtml": "~0.3.0",
     "grunt-simple-mocha": "~0.4.0",
-    "load-grunt-tasks": "~0.3.0",
+    "load-grunt-tasks": "~0.4.0",
     "mocha": "~1.17.1",
-    "time-grunt": "~0.2.8"
+    "time-grunt": "~0.2.9"
   },
   "directories": {
     "test": "tests"