diff --git a/package.json b/package.json
index a165d35d1..720ceacdd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ckeditor5-dev",
-  "version": "2.0.12",
+  "version": "3.0.0",
   "private": true,
   "dependencies": {
     "glob": "^7.1.3",
diff --git a/packages/ckeditor5-dev-env/package.json b/packages/ckeditor5-dev-env/package.json
index 4a61d5cb1..36ef8df42 100644
--- a/packages/ckeditor5-dev-env/package.json
+++ b/packages/ckeditor5-dev-env/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-env",
-  "version": "15.0.5",
+  "version": "16.0.0",
   "description": "Tasks used during development of CKEditor 5.",
   "keywords": [],
   "main": "lib/index.js",