diff --git a/package.json b/package.json
index 88717ba9b..ea0d2ef92 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ckeditor5-dev",
-  "version": "30.5.0",
+  "version": "31.0.0",
   "private": true,
   "dependencies": {
     "@ckeditor/ckeditor5-dev-env": "^31.0.0"
diff --git a/packages/ckeditor5-dev-docs/package.json b/packages/ckeditor5-dev-docs/package.json
index 4e40e758e..9ce67d493 100644
--- a/packages/ckeditor5-dev-docs/package.json
+++ b/packages/ckeditor5-dev-docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-docs",
-  "version": "30.5.0",
+  "version": "31.0.0",
   "description": "Tasks used to build and verify the documentation for CKEditor 5.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/ckeditor5-dev-env/package.json b/packages/ckeditor5-dev-env/package.json
index a0cfe6466..6fbf21696 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": "30.5.0",
+  "version": "31.0.0",
   "description": "Tasks used during development of CKEditor 5.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/ckeditor5-dev-tests/package.json b/packages/ckeditor5-dev-tests/package.json
index e139b4b8a..f0550bd79 100644
--- a/packages/ckeditor5-dev-tests/package.json
+++ b/packages/ckeditor5-dev-tests/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-tests",
-  "version": "30.5.0",
+  "version": "31.0.0",
   "description": "Testing environment for CKEditor 5.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/ckeditor5-dev-utils/package.json b/packages/ckeditor5-dev-utils/package.json
index 049c28d96..e0c5f6daf 100644
--- a/packages/ckeditor5-dev-utils/package.json
+++ b/packages/ckeditor5-dev-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-utils",
-  "version": "30.5.0",
+  "version": "31.0.0",
   "description": "Utils for CKEditor 5 development tools packages.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/ckeditor5-dev-webpack-plugin/package.json b/packages/ckeditor5-dev-webpack-plugin/package.json
index 8292faf9c..729510e08 100644
--- a/packages/ckeditor5-dev-webpack-plugin/package.json
+++ b/packages/ckeditor5-dev-webpack-plugin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-webpack-plugin",
-  "version": "30.5.0",
+  "version": "31.0.0",
   "description": "CKEditor 5 plugin for webpack.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/jsdoc-plugins/package.json b/packages/jsdoc-plugins/package.json
index c0078005d..23f5ad39e 100644
--- a/packages/jsdoc-plugins/package.json
+++ b/packages/jsdoc-plugins/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/jsdoc-plugins",
-  "version": "30.5.0",
+  "version": "31.0.0",
   "description": "Various JSDoc plugins developed by the CKEditor 5 team.",
   "keywords": [
     "jsdoc",