diff --git a/package.json b/package.json
index 012a2f3..9096ba3 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "test": "make lint && make spec"
   },
   "devDependencies": {
-    "browserify": "11.2.0",
+    "browserify": "13.1.0",
     "eslint": "1.10.3",
     "http-server": "0.9.0",
     "jasmine-node": "1.14.5",