diff --git a/package.json b/package.json
index 72469c9..50a9489 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name":        "outset-lib",
   "description": "A boilerplate for vanilla JavaScript libraries.",
 
-  "version": "3.1.0",
+  "version": "4.0.0",
   "license": "MIT",
 
   "repository": "callmecavs/outset-lib",