diff --git a/composer.json b/composer.json
index ecd1b9e..1043a50 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "license": "GPL-2.0-or-later",
     "minimum-stability": "dev",
     "require": {
-        "drupal/core": "^10.2",
+        "drupal/core": "^10.2 || ^11.0",
         "drupal/diff": "^1.0",
         "drupal/responsive_preview": "^2.0",
         "drupal/scheduled_transitions": "^2.1",
diff --git a/localgov_workflows.info.yml b/localgov_workflows.info.yml
index 431089a..85b4a72 100644
--- a/localgov_workflows.info.yml
+++ b/localgov_workflows.info.yml
@@ -2,7 +2,7 @@ name: LocalGov Workflows
 description: Provides the default editorial workflow for content types.
 package: LocalGov Drupal
 type: module
-core_version_requirement: ^10.2
+core_version_requirement: ^10 || ^11
 
 dependencies:
   - drupal:content_moderation
diff --git a/modules/localgov_review_date/localgov_review_date.info.yml b/modules/localgov_review_date/localgov_review_date.info.yml
index f4a89a5..4408d6a 100644
--- a/modules/localgov_review_date/localgov_review_date.info.yml
+++ b/modules/localgov_review_date/localgov_review_date.info.yml
@@ -2,7 +2,7 @@ name: LocalGov Review Date
 description: Provides a review dates entity and widget, along with views for managing content reviews.
 package: LocalGov Drupal
 type: module
-core_version_requirement: ^9 || ^10
+core_version_requirement: ^10 || ^11
 
 dependencies:
   - drupal:content_moderation
diff --git a/modules/localgov_workflows_notifications/localgov_workflows_notifications.info.yml b/modules/localgov_workflows_notifications/localgov_workflows_notifications.info.yml
index ff742bb..00e794f 100644
--- a/modules/localgov_workflows_notifications/localgov_workflows_notifications.info.yml
+++ b/modules/localgov_workflows_notifications/localgov_workflows_notifications.info.yml
@@ -2,7 +2,7 @@ name: 'LocalGov Workflows Notifications'
 type: module
 description: 'Send notifications to service contacts when content needs reviewing.'
 package: LocalGov Drupal
-core_version_requirement: ^9 || ^10
+core_version_requirement: ^10.2 || ^11
 dependencies:
   - localgov_workflows:localgov_workflows
   - symfony_mailer:symfony_mailer
diff --git a/modules/localgov_workflows_notifications/src/Form/LocalgovWorkflowsNotificationsSettingsForm.php b/modules/localgov_workflows_notifications/src/Form/LocalgovWorkflowsNotificationsSettingsForm.php
index 7dc4b69..49ab929 100644
--- a/modules/localgov_workflows_notifications/src/Form/LocalgovWorkflowsNotificationsSettingsForm.php
+++ b/modules/localgov_workflows_notifications/src/Form/LocalgovWorkflowsNotificationsSettingsForm.php
@@ -3,6 +3,7 @@
 namespace Drupal\localgov_workflows_notifications\Form;
 
 use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Config\TypedConfigManagerInterface;
 use Drupal\Core\Form\ConfigFormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\localgov_workflows_notifications\NotificationTimer;
@@ -27,12 +28,12 @@ final class LocalgovWorkflowsNotificationsSettingsForm extends ConfigFormBase {
    *   The factory for configuration objects.
    * @param \Drupal\localgov_workflows_notifications\NotificationTimer $notification_timer
    *   The notification timer service.
-   * @param \Drupal\Core\Config\TypedConfigManagerInterface|null $typedConfigManager
+   * @param \Drupal\Core\Config\TypedConfigManagerInterface $typed_config_manager
    *   The typed config manager.
    */
-  public function __construct(ConfigFactoryInterface $config_factory, NotificationTimer $notification_timer, protected $typedConfigManager = NULL) {
+  public function __construct(ConfigFactoryInterface $config_factory, NotificationTimer $notification_timer, TypedConfigManagerInterface $typed_config_manager) {
     $this->timer = $notification_timer;
-    parent::__construct($config_factory, $typedConfigManager);
+    parent::__construct($config_factory, $typed_config_manager);
   }
 
   /**