diff --git a/package-lock.json b/package-lock.json
index ac1717d0..67b2b082 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "yjs",
-  "version": "12.3.0",
+  "version": "13.0.0-0",
   "lockfileVersion": 1,
   "dependencies": {
     "acorn": {
diff --git a/package.json b/package.json
index 0d4957f1..17887718 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "yjs",
-  "version": "12.3.1",
+  "version": "13.0.0-0",
   "description": "A framework for real-time p2p shared editing on any data",
   "main": "./src/y.js",
   "scripts": {