diff --git a/composer.json b/composer.json
index c4e999e4..ece4f29f 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
         "silverstripe/vendor-plugin": "^2"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6",
+        "phpunit/phpunit": "^11.3",
         "squizlabs/php_codesniffer": "^3.7",
         "silverstripe/standards": "^1",
         "phpstan/extension-installer": "^1.3"
diff --git a/tests/ReportAdminTest.php b/tests/ReportAdminTest.php
index 36776c6d..d29b2819 100644
--- a/tests/ReportAdminTest.php
+++ b/tests/ReportAdminTest.php
@@ -10,6 +10,7 @@
 use SilverStripe\Reports\Tests\ReportAdminTest\CannotViewReport;
 use SilverStripe\Reports\Tests\ReportAdminTest\FakeReport;
 use SilverStripe\Reports\Tests\ReportAdminTest\FakeReport2;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 class ReportAdminTest extends FunctionalTest
 {
@@ -46,7 +47,7 @@ public function testBreadcrumbsAreGenerated()
         $this->assertSame('Fake report two', $map['Title']);
     }
 
-    public function provideShowReport(): array
+    public static function provideShowReport(): array
     {
         return [
             'cannot view' => [
@@ -60,9 +61,7 @@ public function provideShowReport(): array
         ];
     }
 
-    /**
-     * @dataProvider provideShowReport
-     */
+    #[DataProvider('provideShowReport')]
     public function testShowReport(string $reportClass, int $expected): void
     {
         $this->logInWithPermission('ADMIN');