diff --git a/.gitignore b/.gitignore
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /vendor/
 composer.lock
+.phpunit.cache/
diff --git a/composer.json b/composer.json
--- a/composer.json
+++ b/composer.json
@@ -25,11 +25,11 @@
     "issues": "http://devcentral.nasqueron.org"
   },
   "require": {
-    "php": ">=5.6.0",
+    "php": ">=8.1.0",
     "php-amqplib/php-amqplib": "2.5.*"
   },
   "require-dev": {
-    "phpunit/phpunit": "5.0.*",
+    "phpunit/phpunit": "10.0.*",
     "squizlabs/php_codesniffer": "*"
   },
   "autoload": {
diff --git a/phpunit.xml b/phpunit.xml
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,21 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="vendor/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false">
-    <testsuites>
-        <testsuite name="Application Test Suite">
-            <directory>./tests/</directory>
-        </testsuite>
-    </testsuites>
-    <filter>
-        <whitelist>
-            <directory suffix=".php">src/</directory>
-        </whitelist>
-    </filter>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         backupGlobals="false" bootstrap="vendor/autoload.php"
+         colors="true" processIsolation="false" stopOnFailure="false"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd"
+         cacheDirectory=".phpunit.cache" backupStaticProperties="false">
+  <coverage>
+    <include>
+      <directory suffix=".php">src/</directory>
+    </include>
+  </coverage>
+  <testsuites>
+    <testsuite name="Application Test Suite">
+      <directory>./tests/</directory>
+    </testsuite>
+  </testsuites>
 </phpunit>
diff --git a/tests/AMQPBrokerTest.php b/tests/AMQPBrokerTest.php
--- a/tests/AMQPBrokerTest.php
+++ b/tests/AMQPBrokerTest.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace Keruald\Broker\Tests;
 
@@ -10,7 +10,7 @@
      */
     protected $instance;
 
-    protected function setUp() {
+    protected function setUp() : void {
         $this->instance = new AMQPBroker();
     }
 
diff --git a/tests/BlackholeBrokerTest.php b/tests/BlackholeBrokerTest.php
--- a/tests/BlackholeBrokerTest.php
+++ b/tests/BlackholeBrokerTest.php
@@ -1,7 +1,8 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace Keruald\Broker\Tests;
 
+use BadFunctionCallException;
 use Keruald\Broker\BlackholeBroker;
 
 class BlackholeBrokerTest extends TestCase {
@@ -10,15 +11,14 @@
      */
     protected $instance;
 
-    protected function setUp() {
+    protected function setUp() : void {
         $this->instance = new BlackholeBroker();
     }
 
-    /**
-     * @expectedException \BadFunctionCallException
-     */
     public function testNonDefaultOmnipotence () {
         // By default, our blackhole broker shouldn't accept any method.
+        $this->expectException(BadFunctionCallException::class);
+
         $this->instance->spreadLove();
     }
 
diff --git a/tests/BrokerFactoryTest.php b/tests/BrokerFactoryTest.php
--- a/tests/BrokerFactoryTest.php
+++ b/tests/BrokerFactoryTest.php
@@ -1,7 +1,7 @@
-<?php
-
+<?php declare(strict_types=1);
 namespace Keruald\Broker\Tests;
 
+use InvalidArgumentException;
 use Keruald\Broker\BrokerFactory;
 
 class BrokerFactoryTest extends TestCase {
@@ -19,6 +19,8 @@
     }
 
     public function testOmnipotenceBlackhole () {
+        $this->expectNotToPerformAssertions();
+
         $broker = BrokerFactory::make([
             'driver' => 'blackhole',
             'omnipotence' => true,
@@ -26,17 +28,15 @@
         $broker->spreadLove(); // a method not in Broker abstract class
     }
 
-    /**
-     * @expectedException InvalidArgumentException
-     */
     public function testEmptyParameters () {
+        $this->expectException(InvalidArgumentException::class);
+
         BrokerFactory::make([]);
     }
 
-    /**
-     * @expectedException InvalidArgumentException
-     */
     public function testInvalidParameters () {
+        $this->expectException(InvalidArgumentException::class);
+
         BrokerFactory::make([
             'foo' => 'bar'
         ]);
diff --git a/tests/TestCase.php b/tests/TestCase.php
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -1,8 +1,10 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace Keruald\Broker\Tests;
 
-class TestCase extends \PHPUnit_Framework_TestCase {
+use PHPUnit\Framework\TestCase as BaseTestCase;
+
+class TestCase extends BaseTestCase {
     /**
      * Asserts the specified object follows a method cascading pattern
      *
@@ -15,7 +17,7 @@
         // to our test, then we call one par one each method,
         // each time verifying the returned type is still the same.
 
-        $type = get_class($instance);
+        $type = $instance::class;
 
         foreach ($methodsCascade as $method) {
             $methodName = array_shift($method);