diff --git a/package.json b/package.json
index b74b795..d3a02c0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "throat",
-  "version": "4.1.0",
+  "version": "5.0.0",
   "description": "Throttle the parallelism of an asynchronous (promise returning) function / functions",
   "keywords": [
     "promise",
@@ -44,4 +44,4 @@
   },
   "author": "ForbesLindesay",
   "license": "MIT"
-}
+}
\ No newline at end of file