diff --git a/package-lock.json b/package-lock.json
index a857b8c04..c57b59b16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "blockly",
-  "version": "10.3.0",
+  "version": "11.0.0-beta.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "blockly",
-      "version": "10.3.0",
+      "version": "11.0.0-beta.0",
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
diff --git a/package.json b/package.json
index aaf3fad2a..8f9d64396 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blockly",
-  "version": "10.3.0",
+  "version": "11.0.0-beta.0",
   "description": "Blockly is a library for building visual programming editors.",
   "keywords": [
     "blockly"