diff --git a/README.md b/README.md
index 5bebf24..2e815b6 100644
--- a/README.md
+++ b/README.md
@@ -7,22 +7,22 @@ A short introduction of this app could easily go here.
 
 You will need the following things properly installed on your computer.
 
-* [Git](https://git-scm.com/)
-* [Node.js](https://nodejs.org/) (with npm)
-* [Ember CLI](https://cli.emberjs.com/release/)
-* [Google Chrome](https://google.com/chrome/)
+- [Git](https://git-scm.com/)
+- [Node.js](https://nodejs.org/) (with npm)
+- [Ember CLI](https://cli.emberjs.com/release/)
+- [Google Chrome](https://google.com/chrome/)
 
 ## Installation
 
-* `git clone <repository-url>` this repository
-* `cd my-app`
-* `npm install`
+- `git clone <repository-url>` this repository
+- `cd my-app`
+- `npm install`
 
 ## Running / Development
 
-* `npm run start`
-* Visit your app at [http://localhost:4200](http://localhost:4200).
-* Visit your tests at [http://localhost:4200/tests](http://localhost:4200/tests).
+- `npm run start`
+- Visit your app at [http://localhost:4200](http://localhost:4200).
+- Visit your tests at [http://localhost:4200/tests](http://localhost:4200/tests).
 
 ### Code Generators
 
@@ -30,18 +30,18 @@ Make use of the many generators for code, try `ember help generate` for more det
 
 ### Running Tests
 
-* `npm run test`
-* `npm run test:ember -- --server`
+- `npm run test`
+- `npm run test:ember -- --server`
 
 ### Linting
 
-* `npm run lint`
-* `npm run lint:fix`
+- `npm run lint`
+- `npm run lint:fix`
 
 ### Building
 
-* `npm exec ember build` (development)
-* `npm run build` (production)
+- `npm exec ember build` (development)
+- `npm run build` (production)
 
 ### Deploying
 
@@ -49,8 +49,8 @@ Specify what it takes to deploy your app.
 
 ## Further Reading / Useful Links
 
-* [ember.js](https://emberjs.com/)
-* [ember-cli](https://cli.emberjs.com/release/)
-* Development Browser Extensions
-  * [ember inspector for chrome](https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi)
-  * [ember inspector for firefox](https://addons.mozilla.org/en-US/firefox/addon/ember-inspector/)
+- [ember.js](https://emberjs.com/)
+- [ember-cli](https://cli.emberjs.com/release/)
+- Development Browser Extensions
+  - [ember inspector for chrome](https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi)
+  - [ember inspector for firefox](https://addons.mozilla.org/en-US/firefox/addon/ember-inspector/)
diff --git a/config/ember-cli-update.json b/config/ember-cli-update.json
index 333e71a..996ca52 100644
--- a/config/ember-cli-update.json
+++ b/config/ember-cli-update.json
@@ -3,7 +3,7 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "5.8.1",
+      "version": "5.9.0-beta.1",
       "blueprints": [
         {
           "name": "app",
diff --git a/package.json b/package.json
index 689e5b6..83fb7bc 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "broccoli-asset-rev": "^3.0.0",
     "concurrently": "^8.2.2",
     "ember-auto-import": "^2.7.2",
-    "ember-cli": "~5.8.1",
+    "ember-cli": "~5.9.0-beta.1",
     "ember-cli-app-version": "^6.0.1",
     "ember-cli-babel": "^8.2.0",
     "ember-cli-clean-css": "^3.0.0",
@@ -45,14 +45,14 @@
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
-    "ember-data": "~5.3.3",
+    "ember-data": "~5.4.0-beta.4",
     "ember-fetch": "^8.1.2",
     "ember-load-initializers": "^2.1.2",
     "ember-modifier": "^4.1.0",
     "ember-page-title": "^8.2.3",
     "ember-qunit": "^8.0.2",
     "ember-resolver": "^11.0.1",
-    "ember-source": "~5.8.0",
+    "ember-source": "~5.9.0-beta.1",
     "ember-template-lint": "^5.13.0",
     "ember-welcome-page": "^7.0.2",
     "eslint": "^8.57.0",