diff --git a/SmartControl.WebApp/slides/package.json b/SmartControl.WebApp/slides/package.json
index 10ecf40..7b16ce1 100644
--- a/SmartControl.WebApp/slides/package.json
+++ b/SmartControl.WebApp/slides/package.json
@@ -30,7 +30,7 @@
   "devDependencies": {
     "grunt-contrib-qunit": "3.1.0",
     "grunt-contrib-jshint": "0.12.0",
-    "grunt-contrib-cssmin": "0.12.3",
+    "grunt-contrib-cssmin": "4.0.0",
     "grunt-contrib-uglify": "4.0.1",
     "grunt-contrib-watch": "0.6.1",
     "grunt-sass": "3.1.0",