diff --git a/package-lock.json b/package-lock.json
index b78966b4..106ef4cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "yo",
-  "version": "3.1.1",
+  "version": "4.0.0-beta.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "3.1.1",
+      "version": "4.0.0-beta.0",
       "hasInstallScript": true,
       "license": "BSD-2-Clause",
       "dependencies": {
diff --git a/package.json b/package.json
index 7f08b8cf..97f54774 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "yo",
-  "version": "3.1.1",
+  "version": "4.0.0-beta.0",
   "description": "CLI tool for running Yeoman generators",
   "license": "BSD-2-Clause",
   "repository": "yeoman/yo",