diff --git a/src/Tasks/MigrateContentToElement.php b/src/Tasks/MigrateContentToElement.php
index ab98ea23..91c003e0 100644
--- a/src/Tasks/MigrateContentToElement.php
+++ b/src/Tasks/MigrateContentToElement.php
@@ -12,7 +12,9 @@
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Core\Injector\Injector;
 use SilverStripe\Dev\BuildTask;
-use SilverStripe\Versioned\Versioned;
+use SilverStripe\PolyExecution\PolyOutput;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
 
 class MigrateContentToElement extends BuildTask
 {
@@ -49,12 +51,14 @@ class MigrateContentToElement extends BuildTask
      */
     private static $publish_changes = true;
 
-    protected $title = 'MigrateContentToElement';
+    protected static string $commandName = 'elemental-migrate-content';
 
-    protected $description = 'When installing Elemental this task converts content in the $Content '
+    protected string $title = 'MigrateContentToElement';
+
+    protected static string $description = 'When installing Elemental this task converts content in the $Content '
         . 'field to an ElementContent';
 
-    public function run($request)
+    protected function execute(InputInterface $input, PolyOutput $output): int
     {
         $pageTypes = singleton(ElementalArea::class)->supportedPageTypes();
         $count = 0;
@@ -91,10 +95,12 @@ public function run($request)
                     try {
                         $page->write();
                     } catch (Exception $e) {
-                        echo sprintf(
-                            'Could not clear content on page %s: %s',
-                            $page->ID,
-                            $e->getMessage()
+                        $output->writeln(
+                            '<comment>' . sprintf(
+                                'Could not clear content on page %s: %s',
+                                $page->ID,
+                                $e->getMessage()
+                            ) . '</>'
                         );
                     }
 
@@ -125,9 +131,10 @@ public function run($request)
                 $pageTypeCount++;
             }
             $count += $pageTypeCount;
-            echo 'Migrated ' . $pageTypeCount . ' ' . $pageType . ' pages\' content<br>';
+            $output->writeln('Migrated ' . $pageTypeCount . ' ' . $pageType . ' pages\' content');
         }
-        echo 'Finished migrating ' . $count . ' pages\' content<br>';
+        $output->writeln('Finished migrating ' . $count . ' pages\' content');
+        return Command::SUCCESS;
     }
 
     /**
diff --git a/tests/Tasks/MigrateContentToElementTest.php b/tests/Tasks/MigrateContentToElementTest.php
index 9615430a..387abd99 100644
--- a/tests/Tasks/MigrateContentToElementTest.php
+++ b/tests/Tasks/MigrateContentToElementTest.php
@@ -6,11 +6,13 @@
 use DNADesign\Elemental\Tasks\MigrateContentToElement;
 use DNADesign\Elemental\Tests\Src\TestElement;
 use DNADesign\Elemental\Tests\Src\TestPage;
-use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Dev\SapphireTest;
+use SilverStripe\PolyExecution\PolyOutput;
 use SilverStripe\ORM\HasManyList;
 use SilverStripe\Versioned\Versioned;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Output\BufferedOutput;
 
 class MigrateContentToElementTest extends SapphireTest
 {
@@ -42,9 +44,12 @@ public function testContentIsMigratedFromPagesToNewElements()
         $page = $this->objFromFixture(TestPage::class, 'page3');
         $page->publishSingle();
 
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $buffer = new BufferedOutput();
+        $output = new PolyOutput(PolyOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 1 pages\' content', $output);
 
@@ -72,9 +77,12 @@ public function testContentIsNotClearedWhenConfigured()
 
         $task = new MigrateContentToElement();
 
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $buffer = new BufferedOutput();
+        $polyOutput = new PolyOutput(PolyOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $polyOutput);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 1 pages\' content', $output);
 
@@ -85,9 +93,8 @@ public function testContentIsNotClearedWhenConfigured()
         $this->assertStringContainsString('This is page 3', $element->HTML, 'Content is still added to a new element');
 
         // Run the task again and assert the page is not picked up again
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $task->run($input, $polyOutput);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 0 pages\' content', $output);
         $page = $this->objFromFixture(TestPage::class, 'page3');
@@ -101,9 +108,12 @@ public function testTargetElementConfigurationIsRespected()
 
         $task = new MigrateContentToElement();
 
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $buffer = new BufferedOutput();
+        $output = new PolyOutput(PolyOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 1 pages\' content', $output);
 
@@ -125,9 +135,12 @@ public function testPublishingConfigurationIsRespected()
 
         $task = new MigrateContentToElement();
 
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $buffer = new BufferedOutput();
+        $output = new PolyOutput(PolyOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 1 pages\' content', $output);
 
@@ -152,9 +165,12 @@ public function testPagesThatWereNotPublishedAreNotPublishedDuringThisTask()
     {
         $task = new MigrateContentToElement();
 
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $buffer = new BufferedOutput();
+        $output = new PolyOutput(PolyOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 1 pages\' content', $output);
 
@@ -187,9 +203,12 @@ public function testIgnoredClassesContentIsNotCleared()
         $page = $this->objFromFixture(TestPage::class, 'page3');
         $page->publishSingle();
 
-        ob_start();
-        $task->run(new HTTPRequest('GET', ''));
-        $output = ob_get_clean();
+        $buffer = new BufferedOutput();
+        $output = new PolyOutput(PolyOutput::FORMAT_ANSI, wrappedOutput: $buffer);
+        $input = new ArrayInput([]);
+        $input->setInteractive(false);
+        $task->run($input, $output);
+        $output = $buffer->fetch();
 
         $this->assertStringContainsString('Finished migrating 0 pages\' content', $output);