diff --git a/src/Jobs/ContentReviewNotificationJob.php b/src/Jobs/ContentReviewNotificationJob.php
index a558952..379bb4b 100644
--- a/src/Jobs/ContentReviewNotificationJob.php
+++ b/src/Jobs/ContentReviewNotificationJob.php
@@ -5,9 +5,11 @@
 use SilverStripe\ContentReview\Tasks\ContentReviewEmails;
 use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Core\Config\Config;
+use SilverStripe\HybridExecution\HybridOutput;
 use Symbiote\QueuedJobs\Services\AbstractQueuedJob;
 use Symbiote\QueuedJobs\Services\QueuedJob;
 use Symbiote\QueuedJobs\Services\QueuedJobService;
+use Symfony\Component\Console\Input\ArrayInput;
 
 if (!class_exists(AbstractQueuedJob::class)) {
     return;
@@ -94,7 +96,10 @@ public function process()
         $this->queueNextRun();
 
         $task = ContentReviewEmails::create();
-        $task->run(new HTTPRequest("GET", "/dev/tasks/ContentReviewEmails"));
+        $output = HybridOutput::create(HybridOutput::FORMAT_ANSI);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
 
         $this->currentStep = 1;
         $this->isComplete = true;
diff --git a/src/Tasks/ContentReviewEmails.php b/src/Tasks/ContentReviewEmails.php
index 2131796..df6c62d 100644
--- a/src/Tasks/ContentReviewEmails.php
+++ b/src/Tasks/ContentReviewEmails.php
@@ -3,11 +3,10 @@
 namespace SilverStripe\ContentReview\Tasks;
 
 use Page;
-use RuntimeException;
 use SilverStripe\ContentReview\Compatibility\ContentReviewCompatability;
 use SilverStripe\Control\Email\Email;
-use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Dev\BuildTask;
+use SilverStripe\HybridExecution\HybridOutput;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\FieldType\DBDatetime;
 use SilverStripe\ORM\FieldType\DBField;
@@ -16,6 +15,8 @@
 use SilverStripe\SiteConfig\SiteConfig;
 use SilverStripe\View\ArrayData;
 use SilverStripe\View\SSViewer;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
 
 /**
  * Daily task to send emails to the owners of content items when the review date rolls around.
@@ -24,19 +25,21 @@ class ContentReviewEmails extends BuildTask
 {
     private array $invalid_emails = [];
 
-    /**
-     * @param HTTPRequest $request
-     * @throws RuntimeException
-     */
-    public function run($request)
+    protected static string $commandName = 'content-review-emails';
+
+    protected static string $description = 'Daily task to send emails to the owners of content items when the review'
+        . ' date rolls around';
+
+    protected function execute(InputInterface $input, HybridOutput $output): int
     {
         if (!$this->isValidEmail($senderEmail = SiteConfig::current_site_config()->ReviewFrom)) {
-            throw new RuntimeException(
+            $output->writeln(
                 sprintf(
-                    'Provided sender email address is invalid: "%s".',
+                    '<error>Provided sender email address is invalid: "%s".</>',
                     $senderEmail
                 )
             );
+            return Command::FAILURE;
         }
 
         $compatibility = ContentReviewCompatability::start();
@@ -57,13 +60,16 @@ public function run($request)
 
         if (is_array($this->invalid_emails) && count($this->invalid_emails) > 0) {
             $plural = count($this->invalid_emails) > 1 ? 's are' : ' is';
-            throw new RuntimeException(
+            $output->writeln(
                 sprintf(
-                    'Provided email' . $plural . ' invalid: "%s".',
+                    '<error>Provided email' . $plural . ' invalid: "%s".</>',
                     implode(', ', $this->invalid_emails)
                 )
             );
+            return Command::FAILURE;
         }
+
+        return Command::SUCCESS;
     }
 
     /**
diff --git a/src/Tasks/ContentReviewOwnerMigrationTask.php b/src/Tasks/ContentReviewOwnerMigrationTask.php
deleted file mode 100644
index f3536b6..0000000
--- a/src/Tasks/ContentReviewOwnerMigrationTask.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-
-namespace SilverStripe\ContentReview\Tasks;
-
-use SilverStripe\Control\HTTPRequest;
-use SilverStripe\Dev\BuildTask;
-use SilverStripe\ORM\DB;
-
-/**
- * Task which migrates the ContentReview Module's SiteTree->OwnerID column to a new column name.
- */
-class ContentReviewOwnerMigrationTask extends BuildTask
-{
-    /**
-     * @param HTTPRequest $request
-     */
-    public function run($request)
-    {
-        $results = DB::query("SHOW columns from \"SiteTree\" WHERE \"field\" = 'OwnerID'");
-
-        if ($results->numRecords() == 0) {
-            echo "<h1>No need to run task. SiteTree->OwnerID doesn't exist</h1>";
-        } else {
-            DB::query("UPDATE \"SiteTree\" SET \"ContentReviewOwnerID\" = \"OwnerID\"");
-            DB::query("UPDATE \"SiteTree_Live\" SET \"ContentReviewOwnerID\" = \"OwnerID\"");
-            DB::query("UPDATE \"SiteTree_versions\" SET \"ContentReviewOwnerID\" = \"OwnerID\"");
-            DB::query("ALTER TABLE \"SiteTree\" DROP COLUMN \"OwnerID\"");
-            DB::query("ALTER TABLE \"SiteTree_Live\" DROP COLUMN \"OwnerID\"");
-            DB::query("ALTER TABLE \"SiteTree_Versions\" DROP COLUMN \"OwnerID\"");
-            echo "<h1>Migrated 3 tables. Dropped obsolete OwnerID column</h1>";
-        }
-    }
-}
diff --git a/tests/php/ContentReviewNotificationTest.php b/tests/php/ContentReviewNotificationTest.php
index 241dd9c..c3e74c5 100644
--- a/tests/php/ContentReviewNotificationTest.php
+++ b/tests/php/ContentReviewNotificationTest.php
@@ -18,6 +18,9 @@
 use SilverStripe\Security\Member;
 use SilverStripe\SiteConfig\SiteConfig;
 use SilverStripe\ContentReview\Models\ContentReviewLog;
+use SilverStripe\HybridExecution\HybridOutput;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Output\BufferedOutput;
 
 class ContentReviewNotificationTest extends SapphireTest
 {
@@ -58,7 +61,11 @@ public function testContentReviewEmails()
         $childParentPage->write();
 
         $task = new ContentReviewEmails();
-        $task->run(new HTTPRequest('GET', '/dev/tasks/ContentReviewEmails'));
+        $buffer = new BufferedOutput();
+        $output = new HybridOutput(HybridOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
 
         // Set template variables (as per variable case)
         $ToEmail = 'author@example.com';
@@ -124,7 +131,11 @@ public function testContentReviewNeeded()
         $this->assertCount(1, $childParentPage->ReviewLogs());
 
         $task = new ContentReviewEmails();
-        $task->run(new HTTPRequest('GET', '/dev/tasks/ContentReviewEmails'));
+        $buffer = new BufferedOutput();
+        $output = new HybridOutput(HybridOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
 
         // Expecting to not send the email as content review for page is done
         $email = $this->findEmail($member->Email);