diff --git a/package.json b/package.json
index a5c00bd..26d93fe 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "firefox-profile": "^0.3.11",
     "grunt": "^0.4.5",
     "grunt-bump": "0.7.0",
-    "grunt-contrib-clean": "^0.6.0",
+    "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-coffee": "^0.13.0",
     "grunt-contrib-copy": "^0.8.2",
     "grunt-contrib-less": "^1.0.1",