diff --git a/package-lock.json b/package-lock.json
index a72aa2c..dfd5088 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "is-lite",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 8068a4d..543549c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "is-lite",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "A tiny javascript type testing tool",
   "author": "Gil Barbara <gilbarbara@gmail.com>",
   "repository": {