--- ../test/Driver/Http1DriverTest.php	2026-07-27 20:39:26.391666666 +0300
+++ ../test/Driver/Http1DriverTest.php	2026-07-27 20:42:42.312328891 +0300
@@ -31,12 +31,11 @@
 use function Amp\async;
 use function Amp\delay;
 use function Amp\Http\Client\events;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 class Http1DriverTest extends HttpDriverTest
 {
-    /**
-     * @dataProvider provideUnparsableRequests
-     */
+    #[DataProvider('provideUnparsableRequests')]
     public function testBadRequestBufferedParse(
         string $unparsable,
         int $errCode,
@@ -57,9 +56,7 @@
         self::assertStringStartsWith(\sprintf("HTTP/1.0 %d %s", $errCode, $errMsg), $output->buffer());
     }
 
-    /**
-     * @dataProvider provideUnparsableRequests
-     */
+    #[DataProvider('provideUnparsableRequests')]
     public function testBadRequestIncrementalParse(
         string $unparsable,
         int $errCode,
@@ -85,9 +82,7 @@
         self::assertStringStartsWith(\sprintf("HTTP/1.0 %d %s", $errCode, $errMsg), $output->buffer());
     }
 
-    /**
-     * @dataProvider provideParsableRequests
-     */
+    #[DataProvider('provideParsableRequests')]
     public function testBufferedRequestParse(string $msg, array $expectations): void
     {
         $requestHandler = new ClosureRequestHandler(function (Request $req) use (&$request) {
@@ -123,9 +118,7 @@
         self::assertSame($expectations["body"], $body, "body mismatch");
     }
 
-    /**
-     * @dataProvider provideParsableRequests
-     */
+    #[DataProvider('provideParsableRequests')]
     public function testIncrementalRequestParse(string $msg, array $expectations): void
     {
         $requestHandler = new ClosureRequestHandler(function (Request $req) use (&$request) {
@@ -239,16 +232,14 @@
     /**
      * provide multiple chunk-sizes to test with.
      */
-    public function chunkSizeProvider(): \Generator
+    public static function chunkSizeProvider(): \Generator
     {
         for ($i = 1; $i < 11; $i++) {
             yield [$i];
         }
     }
 
-    /**
-     * @dataProvider chunkSizeProvider
-     */
+    #[DataProvider('chunkSizeProvider')]
     public function testChunkedBodyParseEmit(int $chunkSize): void
     {
         $msg =
@@ -299,7 +290,7 @@
         self::assertSame($expectedBody, $body);
     }
 
-    public function provideParsableRequests(): array
+    public static function provideParsableRequests(): array
     {
         $return = [];
 
@@ -509,7 +500,7 @@
         return $return;
     }
 
-    public function provideUnparsableRequests(): array
+    public static function provideUnparsableRequests(): array
     {
         $return = [];
 
@@ -641,9 +632,7 @@
         return $return;
     }
 
-    /**
-     * @dataProvider provideUpgradeBodySizeData
-     */
+    #[DataProvider('provideUpgradeBodySizeData')]
     public function testUpgradeBodySizeContentLength(string $data, string $payload): void
     {
         $requestHandler = new ClosureRequestHandler(function (Request $req) use (&$request, &$body, $payload) {
@@ -674,7 +663,7 @@
         self::assertSame($payload, $body);
     }
 
-    public function provideUpgradeBodySizeData()
+    public static function provideUpgradeBodySizeData()
     {
         $body = "abcdefghijklmnopqrstuvwxyz";
 
@@ -867,7 +856,7 @@
         ], "foobar");
     }
 
-    /** @dataProvider provideWriteResponses */
+    #[DataProvider('provideWriteResponses')]
     public function testResponseWrite(
         string $statusLine,
         Response $response,
@@ -902,7 +891,7 @@
         self::assertMatchesRegularExpression('#' . $expectedRegexp . '#i', $output->buffer());
     }
 
-    public function provideWriteResponses(): array
+    public static function provideWriteResponses(): array
     {
         $data = [
             [