diff --git a/README.md b/README.md
index 3327eb0f9587658612921042a92d6968153c34c1..8bf6af86c4f6ea12496c619307904347e9f1e7e0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/Vardot/varbase.svg?branch=8.x-8.5)](https://travis-ci.com/github/Vardot/varbase/builds/169345649) Varbase 8.8.5
+[![Build Status](https://travis-ci.org/Vardot/varbase.svg?branch=9.0.x)](https://travis-ci.com/github/Vardot/varbase/builds/169345649) Varbase 9.0.x
 
 [![](https://www.drupal.org/files/styles/grid-3/public/project-images/Medium-Logo%20Color%20with%20padding.png)](https://www.drupal.org/project/varbase)
 
@@ -20,31 +20,27 @@ in every project.
 * [Tested, tested, and tested.](https://travis-ci.org/Vardot/varbase/builds)
 
 Starting a new project? Consider Varbase for Drupal 8.
-Installing Varbase 8.x-8.x comes with several extra automated installation
+Installing Varbase 9.0.x comes with several extra automated installation
 steps, to take full advantage of Varbase, other than the Drupal 8 installation
 instructions.
 
 
 # Install with Composer
 
-To install the most recent stable release of Varbase 8.8.x run this command:
-```
-composer create-project vardot/varbase-project:^8.8.5 PROJECT_DIR_NAME --no-dev --no-interaction
-```
 
-To install the dev version of Varbase 8.8.x run this command:
+To install the dev version of Varbase 9.0.x run this command:
 ```
-composer create-project vardot/varbase-project:8.8.x-dev PROJECT_DIR_NAME --stability dev --no-interaction
+composer create-project vardot/varbase-project:9.0.x-dev PROJECT_DIR_NAME --stability dev --no-interaction
 ```
 
-## [Create a new Vartheme sub theme for a project](https://github.com/Vardot/varbase/tree/8.x-8.x/scripts/README.md)
+## [Create a new Vartheme sub theme for a project](https://github.com/Vardot/varbase/tree/9.0.x/scripts/README.md)
 
-## [Automated Functional Testing](https://github.com/Vardot/varbase/blob/8.x-8.x/tests/README.md)
+## [Automated Functional Testing](https://github.com/Vardot/varbase/blob/9.0.x/tests/README.md)
 
-## [Varbase Gherkin features](https://github.com/Vardot/varbase/blob/8.x-8.x/tests/features/varbase/README.md)
+## [Varbase Gherkin features](https://github.com/Vardot/varbase/blob/9.0.x/tests/features/varbase/README.md)
 
 ## [Varbase 8.8.x Developer Guide](https://docs.varbase.vardot.com)
 
-## [CHANGELOG for Varbase](https://github.com/Vardot/varbase/blob/8.x-8.x/CHANGELOG.md)
+## [CHANGELOG for Varbase](https://github.com/Vardot/varbase/blob/9.0.x/CHANGELOG.md)
 
-## [General instructions on how to update Varbase](https://github.com/Vardot/varbase/blob/8.x-8.x/UPDATE.md)
+## [General instructions on how to update Varbase](https://github.com/Vardot/varbase/blob/9.0.x/UPDATE.md)
diff --git a/composer.json b/composer.json
index 9f6d2be8eeb86c4536ef786ebe1e09c1e403a4ed..82d99a7f41aa43774dc698f81bf3f114d09d32f1 100644
--- a/composer.json
+++ b/composer.json
@@ -35,8 +35,8 @@
     "drupal/core-composer-scaffold": "^8.8.0",
     "drupal/drupal-library-installer-plugin": "^0.3",
     "webflo/drupal-finder": "~1.0",
-    "drupal/core": "^8.8.0 || ~9.0.0",
-    "drupal/varbase_core": "8.x-dev",
+    "drupal/core": "^9",
+    "drupal/varbase_core": "9.x-dev",
     "drupal/varbase_api": "7.x-dev",
     "drupal/varbase_media": "7.x-dev",
     "drupal/varbase_bootstrap_paragraphs": "7.x-dev",
@@ -69,7 +69,7 @@
     "swagger-api/swagger-ui": "~3.0"
   },
   "require-dev": {
-    "drupal/core-dev": "^8.8.0",
+    "drupal/core-dev": "^9.0.0",
     "drupal/console": "^1.0",
     "drush/drush": "^9.0",
     "behat/behat": "~3.0",
@@ -112,7 +112,7 @@
       }
     },
     "branch-alias": {
-      "dev-8.x-8.x": "8.8.x-dev"
+      "dev-9.0.x": "9.0.x-dev"
     },
     "installer-types": [
       "bower-asset",
diff --git a/tests/README.md b/tests/README.md
index 43b816ad4aba17616eeb53e3c4b5ba4f9889a914..67d33b823866c65753d2feedee8995c518a72523 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -8,7 +8,7 @@
  This page can help  you to have the list all steps, which you need to run the
  Behat Gherkin Features to test a varbase website in your localhost machine.
 
-To test varbase 8.x-8.x in the right way you will need to build varbase using
+To test varbase 9.0.x in the right way you will need to build varbase using
 the composer.
 
 ## Create a Varbase project with [Composer](https://getcomposer.org/download/):
diff --git a/tests/features/varbase/README.md b/tests/features/varbase/README.md
index cbe010e40fdc17620165c3f4d120a66ea70a41e6..fc19487029ed418a405ccb7032c5902287af4db7 100644
--- a/tests/features/varbase/README.md
+++ b/tests/features/varbase/README.md
@@ -1,6 +1,6 @@
 # Varbase Gherkin features
 
-A list of features, and scenarios to have a full test over Varbase 8.x-8.x
+A list of features, and scenarios to have a full test over Varbase 9.0.x
 
 If you want to run all Gherkin Features over a new Varbase site.
 You will need to create the list of Testing users, Arabic
diff --git a/tests/tools/install-varbase/arabic-installation.feature b/tests/tools/install-varbase/arabic-installation.feature
index 5f96086a65cbda106983b0f17cdead56f1863527..63caf6956c9baaaa9fb21ec3a57dc6d66fbb9aeb 100644
--- a/tests/tools/install-varbase/arabic-installation.feature
+++ b/tests/tools/install-varbase/arabic-installation.feature
@@ -4,7 +4,7 @@ I want to be able to install Varbase for a selected client
 So that I will be able to initiate the site with the default installation
 
   @javascript @tools @install @local @development
-  Scenario: Arabic installation for Varbase 8.x-8.x
+  Scenario: Arabic installation for Varbase 9.0.x
     Given I go to "/core/install.php"
       And I wait
      Then I should see "Choose language"
diff --git a/tests/tools/install-varbase/default-installation.feature b/tests/tools/install-varbase/default-installation.feature
index 8fdade759bf3693b81158d4f4f05bde70309f729..391db251f7c62a708525e542330ec18335395e89 100644
--- a/tests/tools/install-varbase/default-installation.feature
+++ b/tests/tools/install-varbase/default-installation.feature
@@ -4,7 +4,7 @@ I want to be able to install Varbase for a selected client
 So that I will be able to initiate the site with the default installation
 
   @javascript @tools @install @local @development
-  Scenario: Default installation for Varbase 8.x-8.x
+  Scenario: Default installation for Varbase 9.0.x
     Given I go to "/core/install.php"
       And I wait
      Then I should see "Choose language"
diff --git a/tests/tools/install-varbase/english-language-installation.feature b/tests/tools/install-varbase/english-language-installation.feature
index 4876c9e40b86bda893c7e7c2ca33b4df21cb8c00..a1d0d81c2547d168255013d3c50c4172c60fef1e 100644
--- a/tests/tools/install-varbase/english-language-installation.feature
+++ b/tests/tools/install-varbase/english-language-installation.feature
@@ -4,7 +4,7 @@ I want to be able to install Varbase for a selected client
 So that I will be able to initiate the site with the default installation
 
   @javascript @tools @install @local @development
-  Scenario: English installation for Varbase 8.x-8.x
+  Scenario: English installation for Varbase 9.0.x
     Given I go to "/core/install.php"
       And I wait
      Then I should see "Choose language"
diff --git a/tests/tools/install-varbase/multilingual-installation.feature b/tests/tools/install-varbase/multilingual-installation.feature
index 12970d3444729b7b8834d367d8b96ecebe2ca055..6a95e54d5d8f172751759294582ccab50b9d91b8 100644
--- a/tests/tools/install-varbase/multilingual-installation.feature
+++ b/tests/tools/install-varbase/multilingual-installation.feature
@@ -4,7 +4,7 @@ I want to be able to install Varbase for a selected client
 So that I will be able to initiate the site with the default installation
 
   @javascript @tools @install @local @development
-  Scenario: Multilingual installation for Varbase 8.x-8.x
+  Scenario: Multilingual installation for Varbase 9.0.x
     Given I go to "/core/install.php"
       And I wait
      Then I should see "Choose language"
diff --git a/varbase.info.yml b/varbase.info.yml
index a023b0f8edf6bbaa22f3551cfad859892012283a..1288bb1829f3c41b9afae6d85d13960776607a60 100755
--- a/varbase.info.yml
+++ b/varbase.info.yml
@@ -1,13 +1,13 @@
 name: Varbase
 type: profile
 description: 'Varbase is an enhanced Drupal distribution with a lot of necessities.'
-core_version_requirement: ^8 || ^9
+core_version_requirement: ^9
 project: varbase
 distribution:
   name: Varbase
   install:
     theme: vartheme_claro
-version: 8.x-8.x-dev
+version: 9.0.x-dev
 install:
   - system
   - action