diff --git a/package.json b/package.json
index 82ea71957..13112dc99 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,10 @@
 {
   "name": "ckeditor5-dev",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "private": true,
   "devDependencies": {
-    "@ckeditor/ckeditor5-dev-ci": "^39.6.3",
-    "@ckeditor/ckeditor5-dev-release-tools": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-ci": "^39.7.0-alpha.2",
+    "@ckeditor/ckeditor5-dev-release-tools": "^39.7.0-alpha.2",
     "coveralls": "^3.1.1",
     "eslint": "^7.0.0",
     "eslint-config-ckeditor5": "^5.0.1",
diff --git a/packages/ckeditor5-dev-build-tools/package.json b/packages/ckeditor5-dev-build-tools/package.json
index 7319c290c..f133d1b48 100644
--- a/packages/ckeditor5-dev-build-tools/package.json
+++ b/packages/ckeditor5-dev-build-tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-build-tools",
-  "version": "39.7.0-alpha.1",
+  "version": "39.7.0-alpha.2",
   "description": "Rollup-based tools used to build CKEditor 5 packages.",
   "keywords": [],
   "author": "CKSource (http://cksource.com/)",
diff --git a/packages/ckeditor5-dev-bump-year/package.json b/packages/ckeditor5-dev-bump-year/package.json
index 5b6bc3155..ad6d26f0c 100644
--- a/packages/ckeditor5-dev-bump-year/package.json
+++ b/packages/ckeditor5-dev-bump-year/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-bump-year",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Used to bump year in the licence text specified at the top of the file.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/ckeditor5-dev-ci/package.json b/packages/ckeditor5-dev-ci/package.json
index 0f5ed2ca6..1e28b1d15 100644
--- a/packages/ckeditor5-dev-ci/package.json
+++ b/packages/ckeditor5-dev-ci/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-ci",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Utils used on various Continuous Integration services.",
   "keywords": [],
   "dependencies": {
diff --git a/packages/ckeditor5-dev-dependency-checker/package.json b/packages/ckeditor5-dev-dependency-checker/package.json
index b78ac21f6..dbbd50c72 100644
--- a/packages/ckeditor5-dev-dependency-checker/package.json
+++ b/packages/ckeditor5-dev-dependency-checker/package.json
@@ -1,10 +1,10 @@
 {
   "name": "@ckeditor/ckeditor5-dev-dependency-checker",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Contains tools for validating dependencies specified in package.json.",
   "keywords": [],
   "dependencies": {
-    "@ckeditor/ckeditor5-dev-utils": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-utils": "^39.7.0-alpha.2",
     "chalk": "^4.1.0",
     "depcheck": "^1.3.1",
     "glob": "^10.2.5",
diff --git a/packages/ckeditor5-dev-docs/package.json b/packages/ckeditor5-dev-docs/package.json
index 455468ddf..2de5e84e9 100644
--- a/packages/ckeditor5-dev-docs/package.json
+++ b/packages/ckeditor5-dev-docs/package.json
@@ -1,13 +1,13 @@
 {
   "name": "@ckeditor/ckeditor5-dev-docs",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Tasks used to build and verify the documentation for CKEditor 5.",
   "keywords": [],
   "main": "lib/index.js",
   "dependencies": {
-    "@ckeditor/ckeditor5-dev-utils": "^39.6.3",
-    "@ckeditor/jsdoc-plugins": "^39.6.3",
-    "@ckeditor/typedoc-plugins": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-utils": "^39.7.0-alpha.2",
+    "@ckeditor/jsdoc-plugins": "^39.7.0-alpha.2",
+    "@ckeditor/typedoc-plugins": "^39.7.0-alpha.2",
     "fast-glob": "^3.2.4",
     "fs-extra": "^9.0.0",
     "jsdoc": "ckeditor/jsdoc#fixed-trailing-comment-doclets",
diff --git a/packages/ckeditor5-dev-release-tools/package.json b/packages/ckeditor5-dev-release-tools/package.json
index ee56b4338..5cca93ba5 100644
--- a/packages/ckeditor5-dev-release-tools/package.json
+++ b/packages/ckeditor5-dev-release-tools/package.json
@@ -1,11 +1,11 @@
 {
   "name": "@ckeditor/ckeditor5-dev-release-tools",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Tools used for releasing CKEditor 5 and related packages.",
   "keywords": [],
   "main": "lib/index.js",
   "dependencies": {
-    "@ckeditor/ckeditor5-dev-utils": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-utils": "^39.7.0-alpha.2",
     "@octokit/rest": "^19.0.0",
     "chalk": "^4.0.0",
     "cli-table": "^0.3.1",
diff --git a/packages/ckeditor5-dev-stale-bot/package.json b/packages/ckeditor5-dev-stale-bot/package.json
index 7fdc0f299..e652f6fdf 100644
--- a/packages/ckeditor5-dev-stale-bot/package.json
+++ b/packages/ckeditor5-dev-stale-bot/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-stale-bot",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "A stale bot is used to mark issues and pull requests that have not recently been updated.",
   "keywords": [],
   "dependencies": {
diff --git a/packages/ckeditor5-dev-tests/package.json b/packages/ckeditor5-dev-tests/package.json
index fcdb9fda2..0d0e0cae0 100644
--- a/packages/ckeditor5-dev-tests/package.json
+++ b/packages/ckeditor5-dev-tests/package.json
@@ -1,13 +1,13 @@
 {
   "name": "@ckeditor/ckeditor5-dev-tests",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Testing environment for CKEditor 5.",
   "keywords": [],
   "main": "lib/index.js",
   "dependencies": {
     "@babel/core": "^7.10.5",
-    "@ckeditor/ckeditor5-dev-translations": "^39.6.3",
-    "@ckeditor/ckeditor5-dev-utils": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-translations": "^39.7.0-alpha.2",
+    "@ckeditor/ckeditor5-dev-utils": "^39.7.0-alpha.2",
     "@ckeditor/ckeditor5-inspector": "^4.0.0",
     "@types/chai": "^4.3.5",
     "@types/karma-sinon-chai": "^2.0.2",
diff --git a/packages/ckeditor5-dev-transifex/package.json b/packages/ckeditor5-dev-transifex/package.json
index 47b764af8..0fab6c447 100644
--- a/packages/ckeditor5-dev-transifex/package.json
+++ b/packages/ckeditor5-dev-transifex/package.json
@@ -1,14 +1,14 @@
 {
   "name": "@ckeditor/ckeditor5-dev-transifex",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Used to download and upload translations using the Transifex service.",
   "keywords": [],
   "main": "lib/index.js",
   "dependencies": {
     "fs-extra": "^9.0.0",
     "del": "^5.1.0",
-    "@ckeditor/ckeditor5-dev-utils": "^39.6.3",
-    "@ckeditor/ckeditor5-dev-translations": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-utils": "^39.7.0-alpha.2",
+    "@ckeditor/ckeditor5-dev-translations": "^39.7.0-alpha.2",
     "chalk": "^4.0.0",
     "inquirer": "^7.1.0",
     "@transifex/api": "^4.2.1",
diff --git a/packages/ckeditor5-dev-translations/package.json b/packages/ckeditor5-dev-translations/package.json
index d93572b12..1490abfab 100644
--- a/packages/ckeditor5-dev-translations/package.json
+++ b/packages/ckeditor5-dev-translations/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-translations",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "CKEditor 5 translations plugin for webpack.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/ckeditor5-dev-utils/package.json b/packages/ckeditor5-dev-utils/package.json
index 705a8aa0b..eee0a146b 100644
--- a/packages/ckeditor5-dev-utils/package.json
+++ b/packages/ckeditor5-dev-utils/package.json
@@ -1,11 +1,11 @@
 {
   "name": "@ckeditor/ckeditor5-dev-utils",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Utils for CKEditor 5 development tools packages.",
   "keywords": [],
   "main": "lib/index.js",
   "dependencies": {
-    "@ckeditor/ckeditor5-dev-translations": "^39.6.3",
+    "@ckeditor/ckeditor5-dev-translations": "^39.7.0-alpha.2",
     "chalk": "^3.0.0",
     "cli-cursor": "^3.1.0",
     "cli-spinners": "^2.6.1",
diff --git a/packages/ckeditor5-dev-web-crawler/package.json b/packages/ckeditor5-dev-web-crawler/package.json
index 7c87557dd..cf9955131 100644
--- a/packages/ckeditor5-dev-web-crawler/package.json
+++ b/packages/ckeditor5-dev-web-crawler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/ckeditor5-dev-web-crawler",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Used to run a web crawler that checks for errors on specified pages.",
   "keywords": [],
   "main": "lib/index.js",
diff --git a/packages/jsdoc-plugins/package.json b/packages/jsdoc-plugins/package.json
index 0b849b24e..a37f71ddf 100644
--- a/packages/jsdoc-plugins/package.json
+++ b/packages/jsdoc-plugins/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/jsdoc-plugins",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Various JSDoc plugins developed by the CKEditor 5 team.",
   "keywords": [
     "jsdoc",
diff --git a/packages/typedoc-plugins/package.json b/packages/typedoc-plugins/package.json
index a1e39b15a..1456d3206 100644
--- a/packages/typedoc-plugins/package.json
+++ b/packages/typedoc-plugins/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ckeditor/typedoc-plugins",
-  "version": "39.6.3",
+  "version": "39.7.0-alpha.2",
   "description": "Various TypeDoc plugins developed by the CKEditor 5 team.",
   "keywords": [],
   "main": "lib/index.js",