--- ../test/RateLimitingSemaphoreTest.php	2026-07-25 13:48:37.471732623 +0300
+++ ../test/RateLimitingSemaphoreTest.php	2026-07-25 13:49:10.152451469 +0300
@@ -4,10 +4,11 @@
 
 use Amp\PHPUnit\AsyncTestCase;
 use Amp\Pipeline\Pipeline;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 class RateLimitingSemaphoreTest extends AsyncTestCase
 {
-    public function providePeriods(): iterable
+    public static function providePeriods(): iterable
     {
         yield 'one-lock-no-delay' => [0.1, 0, 3, 1];
         yield 'one-lock-with-delay' => [0.1, 0.05, 3, 1];
@@ -16,9 +17,7 @@
         yield 'multiple-locks-long-delay' => [0.05, 0.1, 10, 3];
     }
 
-    /**
-     * @dataProvider providePeriods
-     */
+    #[DataProvider('providePeriods')]
     public function testSemaphore(float $lockPeriod, float $delay, int $cycles, int $numLocks): void
     {
         if ($cycles < $numLocks) {