diff --git a/package.json b/package.json
index afe4a0f..f774785 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "seed-random": "^2.2.0"
   },
   "devDependencies": {
-    "browserify": "^5.11.0",
+    "browserify": "^13.0.0",
     "coveralls": "^2.11.1",
     "eslint": "^1.10.3",
     "gulp": "^3.8.7",