diff --git a/package-lock.json b/package-lock.json
index c21ba1db..add6e8c9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "otplib",
-  "version": "8.0.1",
+  "version": "9.0.0-0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index d37676a1..85c4cc0e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "otplib",
-  "version": "8.0.1",
+  "version": "9.0.0-0",
   "description": "HMAC-based (HOTP) and Time-based (TOTP) One-Time Password library",
   "main": "otplib.js",
   "scripts": {