diff --git a/package-lock.json b/package-lock.json
index 6c1717c..e980263 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "regjsgen",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index ec342ed..39b39fe 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "regjsgen",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "Generate regular expressions from regjsparser’s AST.",
   "homepage": "https://github.com/bnjmnt4n/regjsgen",
   "main": "regjsgen.js",
diff --git a/regjsgen.js b/regjsgen.js
index c9bfc16..80ef196 100644
--- a/regjsgen.js
+++ b/regjsgen.js
@@ -1,5 +1,5 @@
 /*!
- * regjsgen 0.4.0
+ * regjsgen 0.5.0
  * Copyright 2014-2018 Benjamin Tan <https://bnjmnt4n.now.sh/>
  * Available under MIT license <https://github.com/bnjmnt4n/regjsgen/blob/master/LICENSE>
  */