diff --git a/.github/SECURITY.md b/.github/SECURITY.md
new file mode 100644
index 0000000..0245d2a
--- /dev/null
+++ b/.github/SECURITY.md
@@ -0,0 +1,17 @@
+# Security Policy
+
+## Supported Versions
+
+The following versions of `ergebnis/data-provider` have active support:
+
+- `^1.3.0`
+
+## Unsupported Versions
+
+The following versions of `ergebnis/data-provider` have reached their end of life:
+
+- `<1.3.0`
+
+## Reporting a Vulnerability
+
+If you believe that you have found a security vulnerability, please send an email to `am@localheinz.com`. Ensure to include all details required to understand the severity of the issue.
diff --git a/.github/settings.yml b/.github/settings.yml
index 841cc15..e9bfa42 100644
--- a/.github/settings.yml
+++ b/.github/settings.yml
@@ -82,6 +82,7 @@ repository:
   has_pages: false
   has_projects: false
   has_wiki: false
+  is_template: false
   name: "data-provider"
   private: false
 
diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index 3793c81..d66c7ae 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -30,7 +30,7 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "xdebug"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
@@ -39,6 +39,9 @@ jobs:
       - name: "Set up problem matchers for phpunit/phpunit"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/phpunit.json\""
 
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate --ansi --strict"
+
       - name: "Determine composer cache directory"
         uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
 
@@ -93,7 +96,7 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "none"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
@@ -121,7 +124,7 @@ jobs:
         run: "composer normalize --ansi --dry-run"
 
       - name: "Create cache directory for friendsofphp/php-cs-fixer"
-        run: "mkdir -p .build/php-cs-fixer"
+        run: "mkdir -p .build/php-cs-fixer/"
 
       - name: "Cache cache directory for friendsofphp/php-cs-fixer"
         uses: "actions/cache@v3.3.1"
@@ -156,13 +159,16 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "none"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
           tools: "phive"
 
       - name: "Set up problem matchers for PHP"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
 
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate --ansi --strict"
+
       - name: "Determine composer cache directory"
         uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
 
@@ -207,12 +213,15 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "xdebug"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
 
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate --ansi --strict"
+
       - name: "Determine composer cache directory"
         uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
 
@@ -254,12 +263,15 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "none"
-          extensions: "none, ctype, dom, intl, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
 
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate --ansi --strict"
+
       - name: "Determine composer cache directory"
         uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
 
@@ -276,7 +288,7 @@ jobs:
           dependencies: "${{ matrix.dependencies }}"
 
       - name: "Create cache directory for rector/rector"
-        run: "mkdir -p .build/rector"
+        run: "mkdir -p .build/rector/"
 
       - name: "Cache cache directory for rector/rector"
         uses: "actions/cache@v3.3.1"
@@ -311,7 +323,7 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "none"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
@@ -320,6 +332,21 @@ jobs:
       - name: "Validate composer.json and composer.lock"
         run: "composer validate --ansi --strict"
 
+      - name: "Determine composer cache directory"
+        uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
+
+      - name: "Cache dependencies installed with composer"
+        uses: "actions/cache@v3.3.1"
+        with:
+          path: "${{ env.COMPOSER_CACHE_DIR }}"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
+
+      - name: "Install ${{ matrix.dependencies }} dependencies with composer"
+        uses: "ergebnis/.github/actions/composer/install@1.8.0"
+        with:
+          dependencies: "${{ matrix.dependencies }}"
+
       - name: "Check installed packages for security vulnerability advisories"
         run: "composer audit --ansi"
 
@@ -350,6 +377,9 @@ jobs:
       - name: "Set up problem matchers for PHP"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
 
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate --ansi --strict"
+
       - name: "Determine composer cache directory"
         uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
 
@@ -366,7 +396,7 @@ jobs:
           dependencies: "${{ matrix.dependencies }}"
 
       - name: "Create cache directory for vimeo/psalm"
-        run: "mkdir -p .build/psalm"
+        run: "mkdir -p .build/psalm/"
 
       - name: "Run vimeo/psalm"
         run: "vendor/bin/psalm --config=psalm.xml --output-format=github --shepherd --show-info=false --stats --threads=4"
@@ -395,7 +425,7 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "none"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
@@ -404,6 +434,9 @@ jobs:
       - name: "Set up problem matchers for phpunit/phpunit"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/phpunit.json\""
 
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate --ansi --strict"
+
       - name: "Determine composer cache directory"
         uses: "ergebnis/.github/actions/composer/determine-cache-directory@1.8.0"
 
diff --git a/.github/workflows/renew.yaml b/.github/workflows/renew.yaml
index 8427108..b4f0670 100644
--- a/.github/workflows/renew.yaml
+++ b/.github/workflows/renew.yaml
@@ -30,7 +30,7 @@ jobs:
         uses: "shivammathur/setup-php@2.25.4"
         with:
           coverage: "none"
-          extensions: "none, ctype, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
+          extensions: "none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
diff --git a/.gitignore b/.gitignore
index c6b4dc9..f1cf866 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
 /.build/
-/.notes/
+/.note/
 /.phive/
 /vendor/
 !/.phive/phars.xml
diff --git a/.phive/phars.xml b/.phive/phars.xml
index a30ffc0..b195d71 100644
--- a/.phive/phars.xml
+++ b/.phive/phars.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="composer-require-checker" version="^4.4.0" installed="4.4.0" location="./.phive/composer-require-checker" copy="false"/>
+  <phar name="composer-require-checker" version="^4.6.0" installed="4.6.0" location="./.phive/composer-require-checker" copy="false"/>
 </phive>
diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
index 7b2b024..2207285 100644
--- a/.php-cs-fixer.php
+++ b/.php-cs-fixer.php
@@ -35,11 +35,10 @@
     ->exclude([
         '.build/',
         '.github/',
-        '.notes/',
+        '.note/',
     ])
     ->ignoreDotFiles(false)
-    ->in(__DIR__)
-    ->name('.php-cs-fixer.php');
+    ->in(__DIR__);
 
 $config->setCacheFile(__DIR__ . '/.build/php-cs-fixer/.php-cs-fixer.cache');
 
diff --git a/.yamllint.yaml b/.yamllint.yaml
index b2129ac..af99fe0 100644
--- a/.yamllint.yaml
+++ b/.yamllint.yaml
@@ -2,7 +2,7 @@ extends: "default"
 
 ignore: |
   .build/
-  .notes/
+  .note/
   vendor/
 
 rules:
diff --git a/Makefile b/Makefile
index 2550f85..fa67999 100644
--- a/Makefile
+++ b/Makefile
@@ -3,14 +3,14 @@ it: refactoring coding-standards security-analysis static-code-analysis tests ##
 
 .PHONY: code-coverage
 code-coverage: vendor ## Collects coverage from running unit tests with phpunit/phpunit
-	mkdir -p .build/phpunit
+	mkdir -p .build/phpunit/
 	vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --coverage-text
 
 .PHONY: coding-standards
 coding-standards: vendor ## Lints YAML files with yamllint, normalizes composer.json with ergebnis/composer-normalize, and fixes code style issues with friendsofphp/php-cs-fixer
 	yamllint -c .yamllint.yaml --strict .
 	composer normalize
-	mkdir -p .build/php-cs-fixer
+	mkdir -p .build/php-cs-fixer/
 	vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.php --diff --verbose
 
 .PHONY: dependency-analysis
@@ -23,16 +23,17 @@ help: ## Displays this list of targets with descriptions
 
 .PHONY: mutation-tests
 mutation-tests: vendor ## Runs mutation tests with infection/infection
-	mkdir -p .build/infection
+	mkdir -p .build/infection/
 	vendor/bin/infection --configuration=infection.json
 
 .PHONY: phive
 phive: .phive ## Installs dependencies with phive
-	mkdir -p .build/phive
+	mkdir -p .build/phive/
 	PHIVE_HOME=.build/phive phive install --trust-gpg-keys 0x033E5F8D801A2F8D
 
 .PHONY: refactoring
 refactoring: vendor ## Runs automated refactoring with rector/rector
+	mkdir -p .build/rector/
 	vendor/bin/rector process --config=rector.php
 
 .PHONY: security-analysis
@@ -41,19 +42,19 @@ security-analysis: vendor ## Runs a security analysis with composer
 
 .PHONY: static-code-analysis
 static-code-analysis: vendor ## Runs a static code analysis with vimeo/psalm
-	mkdir -p .build/psalm
+	mkdir -p .build/psalm/
 	vendor/bin/psalm --config=psalm.xml --clear-cache
 	vendor/bin/psalm --config=psalm.xml --show-info=false --stats --threads=4
 
 .PHONY: static-code-analysis-baseline
 static-code-analysis-baseline: vendor ## Generates a baseline for static code analysis with vimeo/psalm
-	mkdir -p .build/psalm
+	mkdir -p .build/psalm/
 	vendor/bin/psalm --config=psalm.xml --clear-cache
 	vendor/bin/psalm --config=psalm.xml --set-baseline=psalm-baseline.xml
 
 .PHONY: tests
 tests: vendor ## Runs unit tests with phpunit/phpunit
-	mkdir -p .build/phpunit
+	mkdir -p .build/phpunit/
 	vendor/bin/phpunit --configuration=test/Unit/phpunit.xml
 
 vendor: composer.json composer.lock
diff --git a/README.md b/README.md
index 854470e..409352f 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@
 Run
 
 ```sh
-composer require --dev ergebnis/data-provider
+composer require ergebnis/data-provider
 ```
 
 ## Usage
@@ -133,6 +133,10 @@ Please have a look at [`CONTRIBUTING.md`](.github/CONTRIBUTING.md).
 
 Please have a look at [`CODE_OF_CONDUCT.md`](https://github.com/ergebnis/.github/blob/main/CODE_OF_CONDUCT.md).
 
+## Security Policy
+
+Please have a look at [`SECURITY.md`](.github/SECURITY.md).
+
 ## License
 
 This package is licensed using the MIT License.
diff --git a/composer.json b/composer.json
index 971e7e5..3d47d5e 100644
--- a/composer.json
+++ b/composer.json
@@ -26,6 +26,7 @@
     "ergebnis/composer-normalize": "^2.31.0",
     "ergebnis/license": "^2.1.0",
     "ergebnis/php-cs-fixer-config": "^5.9.2",
+    "ergebnis/phpunit-slow-test-detector": "^2.3.0",
     "infection/infection": "~0.27.0",
     "phpunit/phpunit": "^10.2.2",
     "psalm/plugin-phpunit": "~0.18.4",
diff --git a/composer.lock b/composer.lock
index 84dd876..6e9a21f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "d54bc6e93b3735b10231c99a3ee12981",
+    "content-hash": "65f7b369c8100038fdc60e907bbfedcc",
     "packages": [
         {
             "name": "fakerphp/faker",
@@ -1491,6 +1491,74 @@
             },
             "time": "2023-06-25T20:29:44+00:00"
         },
+        {
+            "name": "ergebnis/phpunit-slow-test-detector",
+            "version": "2.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ergebnis/phpunit-slow-test-detector.git",
+                "reference": "ea03f0fb94a8ba8b2428d5dbbdcda3aa2f6b529a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ergebnis/phpunit-slow-test-detector/zipball/ea03f0fb94a8ba8b2428d5dbbdcda3aa2f6b529a",
+                "reference": "ea03f0fb94a8ba8b2428d5dbbdcda3aa2f6b529a",
+                "shasum": ""
+            },
+            "require": {
+                "php": "~8.1.0 || ~8.2.0",
+                "phpunit/phpunit": "^10.1.3"
+            },
+            "require-dev": {
+                "ergebnis/composer-normalize": "^2.31.0",
+                "ergebnis/data-provider": "^1.3.0",
+                "ergebnis/license": "^2.1.0",
+                "ergebnis/php-cs-fixer-config": "^5.7.0",
+                "fakerphp/faker": "^1.22.0",
+                "psalm/plugin-phpunit": "~0.18.4",
+                "rector/rector": "~0.16.0",
+                "vimeo/psalm": "^5.12.0"
+            },
+            "suggest": {
+                "phpunit/phpunit": "^10.0.1"
+            },
+            "type": "library",
+            "extra": {
+                "composer-normalize": {
+                    "indent-size": 2,
+                    "indent-style": "space"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Ergebnis\\PHPUnit\\SlowTestDetector\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Andreas Möller",
+                    "email": "am@localheinz.com"
+                }
+            ],
+            "description": "Provides facilities for detecting slow tests in phpunit/phpunit.",
+            "homepage": "https://github.com/ergebnis/phpunit-slow-test-detector",
+            "keywords": [
+                "detector",
+                "extension",
+                "phpunit",
+                "slow",
+                "test"
+            ],
+            "support": {
+                "issues": "https://github.com/ergebnis/phpunit-slow-test-detector/issues",
+                "source": "https://github.com/ergebnis/phpunit-slow-test-detector"
+            },
+            "time": "2023-05-30T17:23:26+00:00"
+        },
         {
             "name": "felixfbecker/advanced-json-rpc",
             "version": "v3.2.1",
diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 6d70310..e34bfdc 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -74,11 +74,6 @@
       <code>assertIsArray</code>
     </RedundantConditionGivenDocblockType>
   </file>
-  <file src="test/Unit/ResourceProviderTest.php">
-    <MissingClosureParamType>
-      <code>$value</code>
-    </MissingClosureParamType>
-  </file>
   <file src="test/Util/Specification/Closure.php">
     <ImpureFunctionCall>
       <code>$closure($value)</code>
diff --git a/rector.php b/rector.php
index 85b3e70..2a7a153 100644
--- a/rector.php
+++ b/rector.php
@@ -13,6 +13,7 @@
 
 use Rector\Config;
 use Rector\Core;
+use Rector\Php81;
 use Rector\PHPUnit;
 
 return static function (Config\RectorConfig $rectorConfig): void {
@@ -27,7 +28,11 @@
 
     $rectorConfig->phpVersion(Core\ValueObject\PhpVersion::PHP_81);
 
+    $rectorConfig->rules([
+        Php81\Rector\Property\ReadOnlyPropertyRector::class,
+    ]);
+
     $rectorConfig->sets([
-        PHPUnit\Set\PHPUnitSetList::PHPUNIT_90,
+        PHPUnit\Set\PHPUnitSetList::PHPUNIT_100,
     ]);
 };
diff --git a/test/Unit/AbstractProviderTestCase.php b/test/Unit/AbstractProviderTestCase.php
index c217995..08d7e39 100644
--- a/test/Unit/AbstractProviderTestCase.php
+++ b/test/Unit/AbstractProviderTestCase.php
@@ -16,9 +16,6 @@
 use Ergebnis\DataProvider\Test;
 use PHPUnit\Framework;
 
-/**
- * @internal
- */
 abstract class AbstractProviderTestCase extends Framework\TestCase
 {
     /**
@@ -29,7 +26,7 @@ final protected static function assertProvidesDataSetsForValues(array $values, \
     {
         self::assertExpectedValuesAreNotEmpty($values);
 
-        $expectedDataSets = \array_map(static function ($value): array {
+        $expectedDataSets = \array_map(static function (mixed $value): array {
             return [
                 $value,
             ];
diff --git a/test/Unit/BoolProviderTest.php b/test/Unit/BoolProviderTest.php
index 107f4ae..a563f30 100644
--- a/test/Unit/BoolProviderTest.php
+++ b/test/Unit/BoolProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\BoolProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\BoolProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(BoolProvider::class)]
 final class BoolProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\BoolProvider::arbitrary()
-     *
-     * @param mixed $value
-     */
-    public function testArbitraryProvidesBool($value): void
+    #[Framework\Attributes\DataProviderExternal(BoolProvider::class, 'arbitrary')]
+    public function testArbitraryProvidesBool(mixed $value): void
     {
         self::assertIsBool($value);
     }
@@ -46,12 +40,8 @@ public function testArbitraryReturnsGeneratorThatProvidesBoolValues(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\BoolProvider::false()
-     *
-     * @param mixed $value
-     */
-    public function testFalseProvidesFalse($value): void
+    #[Framework\Attributes\DataProviderExternal(BoolProvider::class, 'false')]
+    public function testFalseProvidesFalse(mixed $value): void
     {
         self::assertFalse($value);
     }
@@ -67,12 +57,8 @@ public function testFalseReturnsGeneratorThatProvidesFalse(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\BoolProvider::true()
-     *
-     * @param mixed $value
-     */
-    public function testTrueProvidesTrue($value): void
+    #[Framework\Attributes\DataProviderExternal(BoolProvider::class, 'true')]
+    public function testTrueProvidesTrue(mixed $value): void
     {
         self::assertTrue($value);
     }
diff --git a/test/Unit/Exception/EmptyValuesTest.php b/test/Unit/Exception/EmptyValuesTest.php
index a83f1b7..841f970 100644
--- a/test/Unit/Exception/EmptyValuesTest.php
+++ b/test/Unit/Exception/EmptyValuesTest.php
@@ -16,11 +16,7 @@
 use Ergebnis\DataProvider\Exception;
 use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\Exception\EmptyValues
- */
+#[Framework\Attributes\CoversClass(Exception\EmptyValues::class)]
 final class EmptyValuesTest extends Framework\TestCase
 {
     public function testCreateReturnsException(): void
diff --git a/test/Unit/FloatProviderTest.php b/test/Unit/FloatProviderTest.php
index 8738d55..703086f 100644
--- a/test/Unit/FloatProviderTest.php
+++ b/test/Unit/FloatProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\FloatProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\FloatProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(FloatProvider::class)]
 final class FloatProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\FloatProvider::arbitrary()
-     *
-     * @param mixed $value
-     */
-    public function testArbitraryProvidesFloat($value): void
+    #[Framework\Attributes\DataProviderExternal(FloatProvider::class, 'arbitrary')]
+    public function testArbitraryProvidesFloat(mixed $value): void
     {
         self::assertIsFloat($value);
     }
@@ -53,9 +47,7 @@ public function testArbitraryReturnsGeneratorThatProvidesFloatValues(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\FloatProvider::lessThanZero()
-     */
+    #[Framework\Attributes\DataProviderExternal(FloatProvider::class, 'lessThanZero')]
     public function testLessThanZeroProvidesFloatLessThanZero(float $value): void
     {
         self::assertLessThan(0, $value);
@@ -75,9 +67,7 @@ public function testLessThanZeroReturnsGeneratorThatProvidesFloatLessThanZero():
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\FloatProvider::zero()
-     */
+    #[Framework\Attributes\DataProviderExternal(FloatProvider::class, 'zero')]
     public function testZeroProvidesZero(float $value): void
     {
         self::assertSame(0.0, $value);
@@ -94,9 +84,7 @@ public function testZeroReturnsGeneratorThatProvidesZero(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\FloatProvider::greaterThanZero()
-     */
+    #[Framework\Attributes\DataProviderExternal(FloatProvider::class, 'greaterThanZero')]
     public function testGreaterThanZeroProvidesFloatGreaterThanZero(float $value): void
     {
         self::assertGreaterThan(0.0, $value);
@@ -116,9 +104,7 @@ public function testGreaterThanZeroReturnsGeneratorThatProvidesFloatGreaterThanZ
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\FloatProvider::lessThanOne()
-     */
+    #[Framework\Attributes\DataProviderExternal(FloatProvider::class, 'lessThanOne')]
     public function testLessThanOneProvidesFloatLessThanOne(float $value): void
     {
         self::assertLessThan(1, $value);
@@ -150,9 +136,7 @@ public function testOneReturnsGeneratorThatProvidesOne(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\FloatProvider::greaterThanOne()
-     */
+    #[Framework\Attributes\DataProviderExternal(FloatProvider::class, 'greaterThanOne')]
     public function testGreaterThanOneProvidesFloatGreaterThanOne(float $value): void
     {
         self::assertGreaterThan(1, $value);
diff --git a/test/Unit/IntProviderTest.php b/test/Unit/IntProviderTest.php
index 4e19ac5..88a5ff9 100644
--- a/test/Unit/IntProviderTest.php
+++ b/test/Unit/IntProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\IntProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\IntProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(IntProvider::class)]
 final class IntProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\IntProvider::arbitrary()
-     *
-     * @param mixed $value
-     */
-    public function testArbitraryProvidesInt($value): void
+    #[Framework\Attributes\DataProviderExternal(IntProvider::class, 'arbitrary')]
+    public function testArbitraryProvidesInt(mixed $value): void
     {
         self::assertIsInt($value);
     }
@@ -53,9 +47,7 @@ public function testArbitraryReturnsGeneratorThatProvidesIntValues(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\IntProvider::lessThanZero()
-     */
+    #[Framework\Attributes\DataProviderExternal(IntProvider::class, 'lessThanZero')]
     public function testLessThanZeroProvidesIntLessThanZero(int $value): void
     {
         self::assertLessThan(0, $value);
@@ -75,9 +67,7 @@ public function testLessThanZeroReturnsGeneratorThatProvidesIntLessThanZero(): v
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\IntProvider::zero()
-     */
+    #[Framework\Attributes\DataProviderExternal(IntProvider::class, 'zero')]
     public function testZeroProvidesZero(int $value): void
     {
         self::assertSame(0, $value);
@@ -94,9 +84,7 @@ public function testZeroReturnsGeneratorThatProvidesZero(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\IntProvider::greaterThanZero()
-     */
+    #[Framework\Attributes\DataProviderExternal(IntProvider::class, 'greaterThanZero')]
     public function testGreaterThanZeroProvidesIntGreaterThanZero(int $value): void
     {
         self::assertGreaterThan(0, $value);
@@ -116,9 +104,7 @@ public function testGreaterThanZeroReturnsGeneratorThatProvidesIntGreaterThanZer
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\IntProvider::lessThanOne()
-     */
+    #[Framework\Attributes\DataProviderExternal(IntProvider::class, 'lessThanOne')]
     public function testLessThanOneProvidesIntLessThanOne(int $value): void
     {
         self::assertLessThan(1, $value);
@@ -150,9 +136,7 @@ public function testOneReturnsGeneratorThatProvidesOne(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\IntProvider::greaterThanOne()
-     */
+    #[Framework\Attributes\DataProviderExternal(IntProvider::class, 'greaterThanOne')]
     public function testGreaterThanOneProvidesIntGreaterThanOne(int $value): void
     {
         self::assertGreaterThan(1, $value);
diff --git a/test/Unit/NullProviderTest.php b/test/Unit/NullProviderTest.php
index b5486e7..b49b40c 100644
--- a/test/Unit/NullProviderTest.php
+++ b/test/Unit/NullProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\NullProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\NullProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(NullProvider::class)]
 final class NullProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\NullProvider::null()
-     *
-     * @param mixed $value
-     */
-    public function testNullProvidesNull($value): void
+    #[Framework\Attributes\DataProviderExternal(NullProvider::class, 'null')]
+    public function testNullProvidesNull(mixed $value): void
     {
         self::assertNull($value);
     }
diff --git a/test/Unit/ObjectProviderTest.php b/test/Unit/ObjectProviderTest.php
index 81f322a..69289b6 100644
--- a/test/Unit/ObjectProviderTest.php
+++ b/test/Unit/ObjectProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\ObjectProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\ObjectProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(ObjectProvider::class)]
 final class ObjectProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\ObjectProvider::object()
-     *
-     * @param mixed $value
-     */
-    public function testObjectProvidesObject($value): void
+    #[Framework\Attributes\DataProviderExternal(ObjectProvider::class, 'object')]
+    public function testObjectProvidesObject(mixed $value): void
     {
         self::assertIsObject($value);
     }
diff --git a/test/Unit/ResourceProviderTest.php b/test/Unit/ResourceProviderTest.php
index c58a7ef..db92c35 100644
--- a/test/Unit/ResourceProviderTest.php
+++ b/test/Unit/ResourceProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\ResourceProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\ResourceProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(ResourceProvider::class)]
 final class ResourceProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\ResourceProvider::resource()
-     *
-     * @param mixed $value
-     */
-    public function testResourceProvidesResource($value): void
+    #[Framework\Attributes\DataProviderExternal(ResourceProvider::class, 'resource')]
+    public function testResourceProvidesResource(mixed $value): void
     {
         self::assertIsResource($value);
     }
@@ -37,7 +31,7 @@ public function testResourceProvidesResource($value): void
     public function testResourceReturnsGeneratorThatProvidesResource(): void
     {
         $specifications = [
-            'resource' => Test\Util\Specification\Closure::create(static function ($value): bool {
+            'resource' => Test\Util\Specification\Closure::create(static function (mixed $value): bool {
                 return \is_resource($value);
             }),
         ];
diff --git a/test/Unit/StringProviderTest.php b/test/Unit/StringProviderTest.php
index 5534cb8..fd4e3ef 100644
--- a/test/Unit/StringProviderTest.php
+++ b/test/Unit/StringProviderTest.php
@@ -13,23 +13,17 @@
 
 namespace Ergebnis\DataProvider\Test\Unit;
 
+use Ergebnis\DataProvider\AbstractProvider;
 use Ergebnis\DataProvider\StringProvider;
 use Ergebnis\DataProvider\Test;
+use PHPUnit\Framework;
 
-/**
- * @internal
- *
- * @covers \Ergebnis\DataProvider\AbstractProvider
- * @covers \Ergebnis\DataProvider\StringProvider
- */
+#[Framework\Attributes\CoversClass(AbstractProvider::class)]
+#[Framework\Attributes\CoversClass(StringProvider::class)]
 final class StringProviderTest extends AbstractProviderTestCase
 {
-    /**
-     * @dataProvider \Ergebnis\DataProvider\StringProvider::arbitrary()
-     *
-     * @param mixed $value
-     */
-    public function testArbitraryProvidesString($value): void
+    #[Framework\Attributes\DataProviderExternal(StringProvider::class, 'arbitrary')]
+    public function testArbitraryProvidesString(mixed $value): void
     {
         self::assertIsString($value);
     }
@@ -65,9 +59,7 @@ public function testArbitraryReturnsGeneratorThatProvidesArbitraryStrings(): voi
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\StringProvider::blank()
-     */
+    #[Framework\Attributes\DataProviderExternal(StringProvider::class, 'blank')]
     public function testBlankProvidesBlankString(string $value): void
     {
         self::assertSame('', \trim($value));
@@ -88,9 +80,7 @@ public function testBlankReturnsGeneratorThatProvidesStringsThatAreNeitherEmptyN
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\StringProvider::empty()
-     */
+    #[Framework\Attributes\DataProviderExternal(StringProvider::class, 'empty')]
     public function testEmptyProvidesEmptyString(string $value): void
     {
         self::assertSame('', $value);
@@ -107,9 +97,7 @@ public function testEmptyReturnsGeneratorThatProvidesAnEmptyString(): void
         self::assertProvidesDataSetsForValuesSatisfyingSpecifications($specifications, $provider);
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\StringProvider::untrimmed()
-     */
+    #[Framework\Attributes\DataProviderExternal(StringProvider::class, 'untrimmed')]
     public function testUntrimmedProvidesUntrimmedString(string $value): void
     {
         self::assertNotSame(\trim($value), $value);
@@ -117,12 +105,8 @@ public function testUntrimmedProvidesUntrimmedString(string $value): void
         self::assertNotSame('', \trim($value));
     }
 
-    /**
-     * @dataProvider \Ergebnis\DataProvider\StringProvider::trimmed()
-     *
-     * @param mixed $value
-     */
-    public function testTrimmedProvidesString($value): void
+    #[Framework\Attributes\DataProviderExternal(StringProvider::class, 'trimmed')]
+    public function testTrimmedProvidesString(mixed $value): void
     {
         self::assertIsString($value);
     }
diff --git a/test/Unit/phpunit.xml b/test/Unit/phpunit.xml
index 9a3ee46..f61186b 100644
--- a/test/Unit/phpunit.xml
+++ b/test/Unit/phpunit.xml
@@ -11,13 +11,23 @@
     cacheResult="true"
     colors="true"
     columns="max"
+    displayDetailsOnIncompleteTests="true"
+    displayDetailsOnSkippedTests="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
+    displayDetailsOnTestsThatTriggerErrors="true"
+    displayDetailsOnTestsThatTriggerNotices="true"
+    displayDetailsOnTestsThatTriggerWarnings="true"
     executionOrder="random"
+    requireCoverageMetadata="true"
     stopOnError="false"
     stopOnFailure="false"
     stopOnIncomplete="false"
     stopOnSkipped="false"
 >
     <coverage includeUncoveredFiles="true"/>
+    <extensions>
+        <bootstrap class="Ergebnis\PHPUnit\SlowTestDetector\Extension"/>
+    </extensions>
     <source>
         <include>
             <directory suffix=".php">../../src/</directory>
diff --git a/test/Util/Specification/Closure.php b/test/Util/Specification/Closure.php
index ff91189..d5236a2 100644
--- a/test/Util/Specification/Closure.php
+++ b/test/Util/Specification/Closure.php
@@ -18,7 +18,7 @@
  */
 final class Closure implements Specification
 {
-    private \Closure $closure;
+    private readonly \Closure $closure;
 
     private function __construct(\Closure $closure)
     {
@@ -32,7 +32,7 @@ public static function create(\Closure $closure): self
         return new self($closure);
     }
 
-    public function isSatisfiedBy($value): bool
+    public function isSatisfiedBy(mixed $value): bool
     {
         $closure = $this->closure;
 
diff --git a/test/Util/Specification/Equal.php b/test/Util/Specification/Equal.php
index 1130bcc..236a774 100644
--- a/test/Util/Specification/Equal.php
+++ b/test/Util/Specification/Equal.php
@@ -15,28 +15,16 @@
 
 final class Equal implements Specification
 {
-    /**
-     * @var mixed
-     */
-    private $value;
-
-    /**
-     * @param mixed $value
-     */
-    private function __construct($value)
+    private function __construct(private readonly mixed $value)
     {
-        $this->value = $value;
     }
 
-    /**
-     * @param mixed $value
-     */
-    public static function create($value): self
+    public static function create(mixed $value): self
     {
         return new self($value);
     }
 
-    public function isSatisfiedBy($value): bool
+    public function isSatisfiedBy(mixed $value): bool
     {
         return $this->value == $value;
     }
diff --git a/test/Util/Specification/Identical.php b/test/Util/Specification/Identical.php
index 3f5c642..e0b72d9 100644
--- a/test/Util/Specification/Identical.php
+++ b/test/Util/Specification/Identical.php
@@ -18,28 +18,16 @@
  */
 final class Identical implements Specification
 {
-    /**
-     * @var mixed
-     */
-    private $value;
-
-    /**
-     * @param mixed $value
-     */
-    private function __construct($value)
+    private function __construct(private readonly mixed $value)
     {
-        $this->value = $value;
     }
 
-    /**
-     * @param mixed $value
-     */
-    public static function create($value): self
+    public static function create(mixed $value): self
     {
         return new self($value);
     }
 
-    public function isSatisfiedBy($value): bool
+    public function isSatisfiedBy(mixed $value): bool
     {
         return $this->value === $value;
     }
diff --git a/test/Util/Specification/Pattern.php b/test/Util/Specification/Pattern.php
index 9c28687..d5a851d 100644
--- a/test/Util/Specification/Pattern.php
+++ b/test/Util/Specification/Pattern.php
@@ -15,11 +15,8 @@
 
 final class Pattern implements Specification
 {
-    private string $pattern;
-
-    private function __construct(string $pattern)
+    private function __construct(private readonly string $pattern)
     {
-        $this->pattern = $pattern;
     }
 
     public static function create(string $pattern): self
@@ -27,7 +24,7 @@ public static function create(string $pattern): self
         return new self($pattern);
     }
 
-    public function isSatisfiedBy($value): bool
+    public function isSatisfiedBy(mixed $value): bool
     {
         if (!\is_string($value)) {
             return false;
diff --git a/test/Util/Specification/Specification.php b/test/Util/Specification/Specification.php
index 9cf684b..deb2e5c 100644
--- a/test/Util/Specification/Specification.php
+++ b/test/Util/Specification/Specification.php
@@ -15,8 +15,5 @@
 
 interface Specification
 {
-    /**
-     * @param mixed $value
-     */
-    public function isSatisfiedBy($value): bool;
+    public function isSatisfiedBy(mixed $value): bool;
 }