diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2757783..21bdbe4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,10 +7,11 @@ on:
 jobs:
   PHPUnit:
     name: PHPUnit (PHP ${{ matrix.php }})
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         php:
+          - 8.2
           - 8.1
           - 8.0
           - 7.4
@@ -23,7 +24,7 @@ jobs:
           - 5.4
           - 5.3
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
@@ -36,13 +37,16 @@ jobs:
 
   PHPUnit-hhvm:
     name: PHPUnit (HHVM)
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v2
-      - uses: azjezz/setup-hhvm@v1
+      - uses: actions/checkout@v3
+      - run: cp "$(which composer)" composer.phar && ./composer.phar self-update --2.2 # downgrade Composer for HHVM
+      - name: Run hhvm composer.phar install
+        uses: docker://hhvm/hhvm:3.30-lts-latest
         with:
-          version: lts-3.30
-      - run: composer self-update --2.2 # downgrade Composer for HHVM
-      - run: hhvm $(which composer) install
-      - run: hhvm vendor/bin/phpunit
+          args: hhvm composer.phar install
+      - name: Run hhvm vendor/bin/phpunit
+        uses: docker://hhvm/hhvm:3.30-lts-latest
+        with:
+          args: hhvm vendor/bin/phpunit
diff --git a/README.md b/README.md
index 0de8a3d..7d8397f 100644
--- a/README.md
+++ b/README.md
@@ -642,7 +642,7 @@ This project follows [SemVer](https://semver.org/).
 This will install the latest supported version:
 
 ```bash
-$ composer require clue/stdio-react:^2.6
+composer require clue/stdio-react:^2.6
 ```
 
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
@@ -680,13 +680,13 @@ To run the test suite, you first need to clone this repo and then install all
 dependencies [through Composer](https://getcomposer.org/):
 
 ```bash
-$ composer install
+composer install
 ```
 
 To run the test suite, go to the project root and run:
 
 ```bash
-$ vendor/bin/phpunit
+vendor/bin/phpunit
 ```
 
 ## License
diff --git a/composer.json b/composer.json
index 0e86dcb..aa5b483 100644
--- a/composer.json
+++ b/composer.json
@@ -20,18 +20,19 @@
     "require-dev": {
         "clue/arguments": "^2.0",
         "clue/commander": "^1.2",
-        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35"
+        "phpunit/phpunit": "^9.6 || ^5.7 || ^4.8.36"
     },
     "suggest": {
         "ext-mbstring": "Using ext-mbstring should provide slightly better performance for handling I/O"
     },
-    "config": {
-        "sort-packages": true
-    },
     "autoload": {
-        "psr-4": { "Clue\\React\\Stdio\\": "src/" }
+        "psr-4": {
+            "Clue\\React\\Stdio\\": "src/"
+        }
     },
     "autoload-dev": {
-        "psr-4": { "Clue\\Tests\\React\\Stdio\\": "tests/" }
+        "psr-4": {
+            "Clue\\Tests\\React\\Stdio\\": "tests/"
+        }
     }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index e259890..21647cf 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!-- PHPUnit configuration file with new format for PHPUnit 9.3+ -->
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
+<!-- PHPUnit configuration file with new format for PHPUnit 9.6+ -->
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.6/phpunit.xsd"
          bootstrap="vendor/autoload.php"
-         colors="true"
          cacheResult="false"
+         colors="true"
          convertDeprecationsToExceptions="true">
     <testsuites>
-        <testsuite name="Stdio React Test Suite">
+        <testsuite name="Stdio Test Suite">
             <directory>./tests/</directory>
         </testsuite>
     </testsuites>
@@ -17,4 +17,7 @@
             <directory>./src/</directory>
         </include>
     </coverage>
+    <php>
+        <ini name="error_reporting" value="-1" />
+    </php>
 </phpunit>
diff --git a/phpunit.xml.legacy b/phpunit.xml.legacy
index 6a2ef42..dbf3bbd 100644
--- a/phpunit.xml.legacy
+++ b/phpunit.xml.legacy
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!-- PHPUnit configuration file with old format for PHPUnit 9.2 or older -->
+<!-- PHPUnit configuration file with old format for legacy PHPUnit -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/4.8/phpunit.xsd"
          bootstrap="vendor/autoload.php"
          colors="true">
     <testsuites>
-        <testsuite name="Stdio React Test Suite">
+        <testsuite name="Stdio Test Suite">
             <directory>./tests/</directory>
         </testsuite>
     </testsuites>
diff --git a/tests/FunctionalExampleTest.php b/tests/FunctionalExampleTest.php
index d6d4a99..9841f56 100644
--- a/tests/FunctionalExampleTest.php
+++ b/tests/FunctionalExampleTest.php
@@ -38,6 +38,10 @@ public function testPeriodicExampleWithClosedInputQuitsImmediately()
             $this->markTestSkipped('Test fails for Github CI with PHP >= 7.0 and HHVM');
         }
 
+        if (PHP_VERSION_ID === 80108 || PHP_VERSION_ID === 80107 || PHP_VERSION_ID === 80020) {
+            $this->markTestSkipped('Skip bugged PHP version: https://github.com/php/php-src/issues/8827');
+        }
+
         $output = $this->execExample('php 01-periodic.php <&-');
 
         if (strpos($output, 'said') !== false) {
@@ -53,6 +57,10 @@ public function testPeriodicExampleWithClosedInputAndOutputQuitsImmediatelyWitho
             $this->markTestSkipped('Test fails for Github CI with PHP >= 7.0 and HHVM');
         }
 
+        if (PHP_VERSION_ID === 80108 || PHP_VERSION_ID === 80107 || PHP_VERSION_ID === 80020) {
+            $this->markTestSkipped('Skip bugged PHP version: https://github.com/php/php-src/issues/8827');
+        }
+
         $output = $this->execExample('php 01-periodic.php <&- >&- 2>&-');
 
         if (strpos($output, 'said') !== false) {
@@ -113,10 +121,6 @@ public function testStubCanEndWithoutReadlineFunctions()
 
     public function testPeriodicExampleViaInteractiveModeQuitsImmediately()
     {
-        if (getenv('CI') === 'true' && PHP_VERSION_ID >= 70000) {
-            $this->markTestSkipped('Test fails for Github CI with PHP >= 7.0');
-        }
-
         if (defined('HHVM_VERSION')) {
             $this->markTestSkipped('Skipped interactive mode on HHVM');
         }
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 002a837..4cac972 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -4,10 +4,6 @@
 
 use PHPUnit\Framework\TestCase as BaseTestCase;
 
-require_once __DIR__ . '/../vendor/autoload.php';
-
-error_reporting(-1);
-
 class TestCase extends BaseTestCase
 {
     protected function expectCallableOnce()