diff --git a/package.json b/package.json
index 4852a37f..7b1923b9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "debug",
-  "version": "3.2.1",
+  "version": "4.0.0",
   "repository": {
     "type": "git",
     "url": "git://github.com/visionmedia/debug.git"