Index: package.json
===================================================================
--- package.json	(revision 8467)
+++ package.json	(working copy)
@@ -10,7 +10,7 @@
     "grunt-contrib-clean": "~0.5.0",
     "grunt-contrib-copy": "~0.5.0",
     "grunt-contrib-cssmin": "~0.9.0",
-    "grunt-contrib-imagemin": "~0.4.1",
+    "grunt-contrib-imagemin": "~0.7.1",
     "grunt-contrib-jshint": "~0.10.0",
     "grunt-contrib-less": "~0.11.0",
     "grunt-contrib-uglify": "~0.4.0",