diff --git a/package.json b/package.json
index c3ec6a5..f6540f1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "potential",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "a minimal promises A+ implementation",
   "homepage": "https://github.com/glebec/potential",
   "author": {