diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 481f1c8..d3fb0a0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
 jobs:
   Silverstripe:
     name: 'Silverstripe (bundle)'
-    uses: nswdpc/ci-files/.github/workflows/silverstripe_53_83.yml@v-4
+    uses: nswdpc/ci-files/.github/workflows/silverstripe_6_83.yml@v-4
   PHPStan:
     name: 'PHPStan (analyse)'
     uses: nswdpc/ci-files/.github/workflows/phpstan.silverstripe_83.yml@v-4
diff --git a/composer.json b/composer.json
index ae83d8d..525a767 100644
--- a/composer.json
+++ b/composer.json
@@ -19,12 +19,12 @@
         }
     ],
     "require": {
-        "nswdpc/silverstripe-elemental-iframe":"^1",
-        "codem/silverstripe-html5-inputs": "^1",
-        "silverstripe/framework" : "^5"
+        "nswdpc/silverstripe-elemental-iframe":"dev-ss6",
+        "codem/silverstripe-html5-inputs": "^2",
+        "silverstripe/framework" : "^6"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^11.5",
         "friendsofphp/php-cs-fixer": "^3",
         "cambis/silverstripe-rector": "^2",
         "cambis/silverstan": "^2",
@@ -33,6 +33,12 @@
         "phpstan/phpstan-phpunit": "^2",
         "rector/rector": "^2"
     },
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://github.com/nswdpc/silverstripe-link.git"
+        }
+    ],
     "autoload": {
         "psr-4": {
             "NSWDPC\\Datawrapper\\": [
@@ -51,8 +57,8 @@
     },
     "scripts": {
         "phpstan-analyse": "./vendor/bin/phpstan analyse --ansi --no-progress --no-interaction --configuration vendor/nswdpc/ci-files/phpstan/.phpstan.silverstripe.neon src/ tests/",
-        "rector-dryrun": "./vendor/bin/rector process --dry-run --ansi --config vendor/nswdpc/ci-files/rector/.rector.silverstripe_53_83.php src/ tests/",
-        "rector-process": "./vendor/bin/rector process --no-diffs --ansi --config vendor/nswdpc/ci-files/rector/.rector.silverstripe_53_83.php src/ tests/",
+        "rector-dryrun": "./vendor/bin/rector process --dry-run --ansi --config vendor/nswdpc/ci-files/rector/.rector.silverstripe_6_83.php src/ tests/",
+        "rector-process": "./vendor/bin/rector process --no-diffs --ansi --config vendor/nswdpc/ci-files/rector/.rector.silverstripe_6_83.php src/ tests/",
         "phpcsfixer-fix": "./vendor/bin/php-cs-fixer fix --ansi --no-interaction --config vendor/nswdpc/ci-files/php-cs-fixer/.php-cs-fixer.php src/ tests/"
     },
     "extra": {
@@ -67,5 +73,7 @@
             "silverstripe/recipe-plugin": true,
             "phpstan/extension-installer": true
         }
-    }
+    },
+    "prefer-stable": true,
+    "minimum-stability": "dev"
 }
diff --git a/src/Models/Elements/ElementDatawrapper.php b/src/Models/Elements/ElementDatawrapper.php
index eea080e..e1f7821 100644
--- a/src/Models/Elements/ElementDatawrapper.php
+++ b/src/Models/Elements/ElementDatawrapper.php
@@ -6,9 +6,9 @@
 use NSWDPC\Datawrapper\WebHookController;
 use NSWDPC\Elemental\Models\Iframe\ElementIframe;
 use SilverStripe\Forms\CheckboxField;
-use SilverStripe\Forms\RequiredFields;
-use SilverStripe\ORM\ValidationException;
-use SilverStripe\View\ArrayData;
+use SilverStripe\Forms\Validation\RequiredFieldsValidator;
+use SilverStripe\Core\Validation\ValidationException;
+use SilverStripe\Model\ArrayData;
 use SilverStripe\View\Requirements;
 
 /**
@@ -33,7 +33,7 @@ class ElementDatawrapper extends ElementIframe
 
     private static string $title = 'Datawrapper visualisation';
 
-    private static string $description = 'Display a Datawrapper visualisation';
+    private static string $class_description = 'Display a Datawrapper visualisation';
 
     private static string $default_host = 'datawrapper.dwcdn.net';
 
@@ -72,7 +72,7 @@ public function getType()
      * Apply requirements when templating
      */
     #[\Override]
-    public function forTemplate($holder = true)
+    public function forTemplate($holder = true): string
     {
         Requirements::customScript(
             ArrayData::create([])->renderWith('NSWDPC/Elemental/Models/Datawrapper/ResponsiveScript'),
@@ -181,7 +181,7 @@ public function DatawrapperIdAttribute(): string
      */
     public function getCMSValidator()
     {
-        return RequiredFields::create(['InputURL']);
+        return RequiredFieldsValidator::create(['InputURL']);
     }
 
     /**