diff --git a/package.json b/package.json
index ff2f74fe..baf6e784 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "grunt-contrib-connect": ">=0.5.0",
     "grunt-contrib-cssmin": ">=0.6.2",
     "grunt-contrib-less": ">=0.6.4",
-    "grunt-contrib-imagemin": "~0.4.1",
+    "grunt-contrib-imagemin": ">=0.7.0",
     "grunt-contrib-uglify": ">=0.2.2",
     "grunt-contrib-watch": ">=0.5.3",
     "grunt-combine-media-queries": ">=1.0.8",