diff --git a/package.json b/package.json
index 8c003a4..7a2efb7 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "node": ">= 0.10.0"
   },
   "devDependencies": {
-    "npm-run-all": "^1.7.0",
+    "npm-run-all": "^4.1.5",
     "onchange": "^2.2.0",
     "uglify-js": "^2.6.1"
   },