diff --git a/package.json b/package.json
index c961d79c0..32095fc07 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "grunt": "~0.4.1",
     "grunt-bump": "~0.0.0",
     "grunt-contrib-clean": "~0.4.0",
-    "grunt-contrib-coffee": "~0.6.3",
+    "grunt-contrib-coffee": "~0.6.4",
     "grunt-contrib-compress": "~0.4.5",
     "grunt-contrib-concat": "~0.1.3",
     "grunt-contrib-copy": "~0.4.0",