diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 41bc26f..d64ed68 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,6 @@ jobs:
       fail-fast: false
       matrix:
         php-version:
-          - "8.0"
           - "8.1"
           - "8.2"
         dependencies:
diff --git a/.gitignore b/.gitignore
index d1966d1..b74c281 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ composer.phar
 phpunit.xml
 .php_cs.cache
 .phpunit.result.cache
+.phpunit.cache
diff --git a/composer.json b/composer.json
index ae23020..407a809 100644
--- a/composer.json
+++ b/composer.json
@@ -23,12 +23,11 @@
     "overblog/promise-adapter": "self.version"
   },
   "require": {
-    "php": "^8.0"
+    "php": "^8.1"
   },
   "require-dev": {
     "guzzlehttp/promises": "^1.5.0 || ^2.0.0",
-    "phpunit/php-code-coverage": "^9.2.27",
-    "phpunit/phpunit": "^9.6.11",
+    "phpunit/phpunit": "^10.3",
     "react/promise": "^2.8.0",
     "webonyx/graphql-php": "^15.0"
   },
diff --git a/lib/promise-adapter/tests/AdapterTest.php b/lib/promise-adapter/tests/AdapterTest.php
index fa56f9b..7c341ea 100644
--- a/lib/promise-adapter/tests/AdapterTest.php
+++ b/lib/promise-adapter/tests/AdapterTest.php
@@ -15,15 +15,16 @@
 use Overblog\PromiseAdapter\Adapter\ReactPromiseAdapter;
 use Overblog\PromiseAdapter\Adapter\WebonyxGraphQLSyncPromiseAdapter;
 use Overblog\PromiseAdapter\PromiseAdapterInterface;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 class AdapterTest extends \PHPUnit\Framework\TestCase
 {
     /**
-     * @dataProvider AdapterDataProvider
      * @param string $promiseClass
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testCreate(PromiseAdapterInterface $Adapter, $context, $promiseClass)
     {
         $promise = $Adapter->create($resolve, $reject);
@@ -34,10 +35,10 @@ public function testCreate(PromiseAdapterInterface $Adapter, $context, $promiseC
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param $message
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testResolveCreatedPromise(PromiseAdapterInterface $Adapter, $message)
     {
         $promise = $Adapter->create($resolve, $reject);
@@ -49,10 +50,10 @@ public function testResolveCreatedPromise(PromiseAdapterInterface $Adapter, $mes
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testRejectCreatedPromise(PromiseAdapterInterface $Adapter, $context)
     {
         $promise = $Adapter->create($resolve, $reject);
@@ -65,11 +66,11 @@ public function testRejectCreatedPromise(PromiseAdapterInterface $Adapter, $cont
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      * @param string $promiseClass
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testCreateAll(PromiseAdapterInterface $Adapter, $context, $promiseClass)
     {
         $values = ['A', 'B', 'C'];
@@ -82,11 +83,11 @@ public function testCreateAll(PromiseAdapterInterface $Adapter, $context, $promi
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      * @param string $promiseClass
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testCreateFulfilled(PromiseAdapterInterface $Adapter, $context, $promiseClass)
     {
         $value = 'resolved!';
@@ -98,11 +99,11 @@ public function testCreateFulfilled(PromiseAdapterInterface $Adapter, $context,
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      * @param string $promiseClass
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testCreatedRejected(PromiseAdapterInterface $Adapter, $context, $promiseClass)
     {
         $expectRejectionReason = new \Exception('Error!');
@@ -114,10 +115,10 @@ public function testCreatedRejected(PromiseAdapterInterface $Adapter, $context,
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testIsPromise(PromiseAdapterInterface $Adapter, $context)
     {
         $promise = $Adapter->create();
@@ -128,10 +129,10 @@ public function testIsPromise(PromiseAdapterInterface $Adapter, $context)
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      * @param string $context
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testAwaitWithoutPromise(PromiseAdapterInterface $Adapter, $context)
     {
         $expected = 'expected value';
@@ -148,10 +149,9 @@ public function testAwaitWithoutPromise(PromiseAdapterInterface $Adapter, $conte
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
-     *
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testAwaitWithUnwrap(PromiseAdapterInterface $Adapter)
     {
         $this->expectException(\Exception::class);
@@ -164,9 +164,9 @@ public function testAwaitWithUnwrap(PromiseAdapterInterface $Adapter)
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testAwaitWithInvalidPromise(PromiseAdapterInterface $Adapter)
     {
         $this->expectException(\InvalidArgumentException::class);
@@ -176,9 +176,9 @@ public function testAwaitWithInvalidPromise(PromiseAdapterInterface $Adapter)
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testCancel(PromiseAdapterInterface $Adapter)
     {
         $this->expectException(\Exception::class);
@@ -193,9 +193,9 @@ public function testCancel(PromiseAdapterInterface $Adapter)
     }
 
     /**
-     * @dataProvider AdapterDataProvider
      * @param PromiseAdapterInterface $Adapter
      */
+    #[DataProvider('AdapterDataProvider')]
     public function testCancelInvalidPromise(PromiseAdapterInterface $Adapter)
     {
         $this->expectException(\Exception::class);
@@ -208,7 +208,7 @@ public function testCancelInvalidPromise(PromiseAdapterInterface $Adapter)
         $Adapter->cancel(new \stdClass());
     }
 
-    public function AdapterDataProvider()
+    public static function AdapterDataProvider()
     {
         return [
             [new GuzzleHttpPromiseAdapter(), 'guzzle', 'GuzzleHttp\\Promise\\PromiseInterface'],
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 338b144..bfe83d5 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- http://phpunit.de/manual/4.1/en/appendixes.configuration.html -->
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" backupGlobals="false" colors="true" bootstrap="./vendor/autoload.php" convertDeprecationsToExceptions="false">
-  <coverage>
-    <include>
-      <directory>./src</directory>
-      <directory>./lib/promise-adapter/src</directory>
-    </include>
-    <exclude>
-      <directory>./vendor</directory>
-      <directory>./tests</directory>
-      <directory>./lib/promise-adapter/tests</directory>
-    </exclude>
-  </coverage>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd" backupGlobals="false" colors="true" bootstrap="./vendor/autoload.php" cacheDirectory=".phpunit.cache">
+  <coverage/>
   <php>
     <ini name="error_reporting" value="-1"/>
   </php>
@@ -21,4 +11,15 @@
       <directory>./lib/promise-adapter/tests</directory>
     </testsuite>
   </testsuites>
+  <source>
+    <include>
+      <directory>./src</directory>
+      <directory>./lib/promise-adapter/src</directory>
+    </include>
+    <exclude>
+      <directory>./vendor</directory>
+      <directory>./tests</directory>
+      <directory>./lib/promise-adapter/tests</directory>
+    </exclude>
+  </source>
 </phpunit>
diff --git a/tests/Functional/Webonyx/GraphQL/TestCase.php b/tests/Functional/Webonyx/GraphQL/TestCase.php
index dfd034f..2ad5840 100644
--- a/tests/Functional/Webonyx/GraphQL/TestCase.php
+++ b/tests/Functional/Webonyx/GraphQL/TestCase.php
@@ -18,12 +18,13 @@
 use GraphQL\GraphQL;
 use Overblog\DataLoader\DataLoader;
 use Overblog\PromiseAdapter\PromiseAdapterInterface;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 abstract class TestCase extends \PHPUnit\Framework\TestCase
 {
     private static $fixtures = null;
 
-    public function getFixtures()
+    public static function getFixtures()
     {
         if (null === self::$fixtures) {
             $fixturesFiles = self::listFiles(__DIR__.'/fixtures');
@@ -64,11 +65,11 @@ private static function listFiles($dir, &$results = [])
     }
 
     /**
-     * @dataProvider getFixtures
      * @param array  $expectedMetrics
      * @param string $query
      * @param array  $expectedResponse
      */
+    #[DataProvider('getFixtures')]
     public function testExecute(array $expectedMetrics, $query, array $expectedResponse)
     {
         $metrics = [