diff --git a/package-lock.json b/package-lock.json
index 32d29e10..fc72528d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "refa",
-  "version": "0.8.0",
+  "version": "0.9.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index c71c4e8b..544460b8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "refa",
-  "version": "0.8.0",
+  "version": "0.9.0",
   "description": "A library for finite automata and regular expressions in the context of JS RegExp",
   "main": "index",
   "scripts": {