diff --git a/package.json b/package.json
index c3247c6..92e349f 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "fast-json-patch": "^0.5.4",
     "grunt": "~0.4.2",
     "grunt-browserify": "~3.7.0",
-    "grunt-concat": "^0.1.6",
+    "grunt-contrib-concat": "^0.5.1",
     "grunt-contrib-connect": "~0.6.0",
     "grunt-contrib-copy": "~0.5.0",
     "grunt-contrib-jshint": "~0.6.3",