diff --git a/package.json b/package.json
index e1b81f0a..2d429e03 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "source-map": "^0.5.3"
   },
   "devDependencies": {
-    "diff": "^2.2.2",
+    "diff": "^3.2.0",
     "git-rev": "^0.2.1",
     "grunt": "~0.4.5",
     "grunt-browserify": "^5.0.0",