diff --git a/composer.json b/composer.json
index d736272..84df861 100644
--- a/composer.json
+++ b/composer.json
@@ -2,18 +2,18 @@
   "name": "magento/composer",
   "description": "Magento composer library helps to instantiate Composer application and run composer commands.",
   "type": "library",
-  "version": "1.1.0",
+  "version": "1.6.0",
   "license": [
     "OSL-3.0",
     "AFL-3.0"
   ],
   "require": {
-    "php": "~5.5.0|~5.6.0|~7.0.0",
-    "composer/composer": "1.0.0-beta1",
-    "symfony/console": "~2.3, !=2.7.0"
+    "php": "~7.3.0||~7.4.0",
+    "composer/composer": "^1.9",
+    "symfony/console": "~4.4.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "4.1.0"
+    "phpunit/phpunit": "^9"
   },
   "autoload": {
     "psr-4": {
diff --git a/tests/Composer/ConsoleArrayInputFactoryTest.php b/tests/Composer/ConsoleArrayInputFactoryTest.php
index 0846b11..ac526c9 100644
--- a/tests/Composer/ConsoleArrayInputFactoryTest.php
+++ b/tests/Composer/ConsoleArrayInputFactoryTest.php
@@ -6,7 +6,7 @@
 
 use Magento\Composer\ConsoleArrayInputFactory;
 
-class ConsoleArrayInputFactoryTest extends PHPUnit_Framework_TestCase
+class ConsoleArrayInputFactoryTest extends \PHPUnit\Framework\TestCase
 {
 
     /**
@@ -14,13 +14,13 @@ class ConsoleArrayInputFactoryTest extends PHPUnit_Framework_TestCase
      */
     protected $factory;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->factory = new ConsoleArrayInputFactory();
     }
 
     public function testCreate()
     {
-        $this->assertInstanceOf('\Symfony\Component\Console\Input\ArrayInput', $this->factory->create([]));
+        $this->assertInstanceOf(\Symfony\Component\Console\Input\ArrayInput::class, $this->factory->create([]));
     }
 }
diff --git a/tests/Composer/InfoCommandTest.php b/tests/Composer/InfoCommandTest.php
index 7b42758..63dbb92 100644
--- a/tests/Composer/InfoCommandTest.php
+++ b/tests/Composer/InfoCommandTest.php
@@ -7,7 +7,7 @@
 use Magento\Composer\MagentoComposerApplication;
 use Magento\Composer\InfoCommand;
 
-class InfoCommandTest extends PHPUnit_Framework_TestCase
+class InfoCommandTest extends \PHPUnit\Framework\TestCase
 {
 
     private $installedOutput = 'name     : 3rdp/a
@@ -31,9 +31,9 @@ class InfoCommandTest extends PHPUnit_Framework_TestCase
      */
     protected $infoCommand;
 
-    protected function setUp()
+    protected function setUp(): void
     {
-        $this->application = $this->getMock('Magento\Composer\MagentoComposerApplication', [], [], '', false, false);
+        $this->application = $this->createMock(\Magento\Composer\MagentoComposerApplication::class);
 
         $this->infoCommand = new InfoCommand($this->application);
     }
diff --git a/tests/Composer/MagentoComposerApplicationTest.php b/tests/Composer/MagentoComposerApplicationTest.php
index abf1814..75619c5 100644
--- a/tests/Composer/MagentoComposerApplicationTest.php
+++ b/tests/Composer/MagentoComposerApplicationTest.php
@@ -9,7 +9,7 @@
 use Magento\Composer\ConsoleArrayInputFactory;
 use Symfony\Component\Console\Output\BufferedOutput;
 
-class MagentoComposerApplicationTest extends PHPUnit_Framework_TestCase
+class MagentoComposerApplicationTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var MagentoComposerApplication
@@ -31,22 +31,11 @@ class MagentoComposerApplicationTest extends PHPUnit_Framework_TestCase
      */
     protected $consoleOutput;
 
-    protected function setUp()
+    protected function setUp(): void
     {
-        $this->composerApplication = $this->getMock(
-            'Composer\Console\Application',
-            [
-                'resetComposer',
-                'create',
-                'run'
-            ],
-            [],
-            '',
-            false,
-            false
-        );
-        $this->inputFactory = $this->getMock('Magento\Composer\ConsoleArrayInputFactory', [], [], '', false);
-        $this->consoleOutput = $this->getMock('Symfony\Component\Console\Output\BufferedOutput', [], [], '', false);
+        $this->composerApplication = $this->createMock(\Composer\Console\Application::class);
+        $this->inputFactory = $this->createMock(\Magento\Composer\ConsoleArrayInputFactory::class);
+        $this->consoleOutput = $this->createMock(\Symfony\Component\Console\Output\BufferedOutput::class);
 
         $this->application = new MagentoComposerApplication(
             'path1',
@@ -57,13 +46,11 @@ protected function setUp()
         );
     }
 
-    /**
-     * @expectedException \RuntimeException
-     * @expectedExceptionMessage Command "update" failed
-     */
     function testWrongExitCode()
     {
         $this->composerApplication->expects($this->once())->method('run')->willReturn(1);
+        $this->expectException(\RuntimeException::class);
+        $this->expectExceptionMessage('Command "update" failed');
 
         $this->application->runComposerCommand(['command'=>'update']);
     }
diff --git a/tests/Composer/RequireUpdateDryRunCommandTest.php b/tests/Composer/RequireUpdateDryRunCommandTest.php
index 24d1346..1c97213 100644
--- a/tests/Composer/RequireUpdateDryRunCommandTest.php
+++ b/tests/Composer/RequireUpdateDryRunCommandTest.php
@@ -8,7 +8,7 @@
 use Magento\Composer\InfoCommand;
 use Magento\Composer\RequireUpdateDryRunCommand;
 
-class RequireUpdateDryRunCommandTest extends PHPUnit_Framework_TestCase
+class RequireUpdateDryRunCommandTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var MagentoComposerApplication|\PHPUnit_Framework_MockObject_MockObject
@@ -62,10 +62,10 @@ class RequireUpdateDryRunCommandTest extends PHPUnit_Framework_TestCase
         ]
     ];
 
-    protected function setUp()
+    protected function setUp(): void
     {
-        $this->application = $this->getMock('Magento\Composer\MagentoComposerApplication', [], [], '', false, false);
-        $this->infoCommand = $this->getMock('Magento\Composer\InfoCommand', [], [], '', false, false);
+        $this->application = $this->createMock(\Magento\Composer\MagentoComposerApplication::class);
+        $this->infoCommand = $this->createMock(\Magento\Composer\InfoCommand::class);
 
         $this->requireUpdateDryRunCommand = new RequireUpdateDryRunCommand(
             $this->application,
@@ -79,15 +79,12 @@ public function testRun()
         $this->requireUpdateDryRunCommand->run([], '');
     }
 
-    /**
-     * @expectedException \RuntimeException
-     * @expectedExceptionMessage
-     */
     public function testRunException()
     {
         $this->application->expects($this->at(1))
             ->method('runComposerCommand')
             ->willThrowException(new \RuntimeException($this->errorMessage));
+        $this->expectException(\RuntimeException::class);
         $this->infoCommand->expects($this->once())->method('run')->willReturn($this->packageInfo);
         $this->requireUpdateDryRunCommand->run(['3rdp/e 1.2.0'], '');
     }