core/package.json | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/core/package.json b/core/package.json
index 12a37445ea..bcce9ec738 100644
--- a/core/package.json
+++ b/core/package.json
@@ -29,9 +29,8 @@
     "spellcheck:make-drupal-dict": "rm -f misc/cspell/dictionary.txt && touch misc/cspell/dictionary.txt && yarn -s spellcheck:core --unique --wordsOnly | tr '[:upper:]' '[:lower:]' | tr -d \\\\\\\\ | LC_ALL=C sort -u -o misc/cspell/dictionary.txt",
     "spellcheck:core": "cspell \"**/*\" \".*\" \"../composer/**/*\" \"../composer.json\"",
     "vendor-update": "node ./scripts/js/assets.js",
-    "ckeditor5:drupal:watch": "yarn ckeditor5:drupal:manifest && webpack --mode development --watch",
-    "ckeditor5:drupal:build": "yarn ckeditor5:drupal:manifest && webpack",
-    "ckeditor5:drupal:manifest": "node assets/vendor/ckeditor5/drupal/scripts/manifest.js",
+    "ckeditor5:drupal:watch": "webpack --mode development --watch",
+    "ckeditor5:drupal:build": "webpack",
     "ckeditor5:build": "node assets/vendor/ckeditor5/scripts/build.js"
   },
   "devDependencies": {
@@ -39,6 +38,26 @@
     "@babel/preset-env": "^7.0.0",
     "@babel/register": "^7.7.7",
     "@ckeditor/ckeditor5-dev-utils": "^25.4.5",
+    "@ckeditor/ckeditor5-alignment": "~31.0.0",
+    "@ckeditor/ckeditor5-basic-styles": "~31.0.0",
+    "@ckeditor/ckeditor5-block-quote": "~31.0.0",
+    "@ckeditor/ckeditor5-dev-utils": "^25.4.5",
+    "@ckeditor/ckeditor5-editor-classic": "~31.0.0",
+    "@ckeditor/ckeditor5-editor-decoupled": "~31.0.0",
+    "@ckeditor/ckeditor5-essentials": "~31.0.0",
+    "@ckeditor/ckeditor5-heading": "~31.0.0",
+    "@ckeditor/ckeditor5-horizontal-line": "~31.0.0",
+    "@ckeditor/ckeditor5-html-support": "~31.0.0",
+    "@ckeditor/ckeditor5-image": "~31.0.0",
+    "@ckeditor/ckeditor5-indent": "~31.0.0",
+    "@ckeditor/ckeditor5-language": "~31.0.0",
+    "@ckeditor/ckeditor5-link": "~31.0.0",
+    "@ckeditor/ckeditor5-list": "~31.0.0",
+    "@ckeditor/ckeditor5-paste-from-office": "~31.0.0",
+    "@ckeditor/ckeditor5-remove-format": "~31.0.0",
+    "@ckeditor/ckeditor5-source-editing": "~31.0.0",
+    "@ckeditor/ckeditor5-special-characters": "~31.0.0",
+    "@ckeditor/ckeditor5-table": "~31.0.0",
     "@drupal/once": "^1.0.1",
     "@popperjs/core": "^2.9.2",
     "babel-plugin-add-header-comment": "^1.0.3",
@@ -46,10 +65,10 @@
     "chalk": "^4.1.0",
     "chokidar": "^3.3.1",
     "chromedriver": "^87.0.0",
+    "ckeditor5": "~31.0.0",
     "cross-env": "^7.0.2",
     "cspell": "^5.0.0",
     "css.escape": "^1.5.1",
-    "dllCkeditor5": "https://github.com/ckeditor/ckeditor5.git#v31.0.0",
     "dotenv-safe": "^8.2.0",
     "es6-promise": "^4.2.8",
     "eslint": "^7.10.0",
@@ -69,6 +88,7 @@
     "jquery-form": "^4.3.0",
     "jquery-once": "^2.2.3",
     "js-cookie": "^3.0.1",
+    "jsdom": "^18.0.1",
     "loadjs": "^4.2.0",
     "minimist": "^1.2.2",
     "mkdirp": "^1.0.4",