diff --git a/package.json b/package.json
index 5f97d92..48a7979 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "inherits": "^2.0.1"
   },
   "devDependencies": {
-    "beautify-proj": "0.0.4",
+    "beautify-proj": "1.0.0",
     "browserify": "^12.0.1",
     "browserify-istanbul": "^0.2.1",
     "chai": "^3.4.1",