diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2e76250..0866d78 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## v0.0.5 (2024-03-08)
+
+### Features
+
+ * remove Symfony/console dependency
+
 ### Bug fix
 
  * Fixed message when missing required argument.
diff --git a/bin/php-vendor-credits b/bin/php-vendor-credits
index 5eb4d87..7b76852 100755
--- a/bin/php-vendor-credits
+++ b/bin/php-vendor-credits
@@ -11,9 +11,8 @@ foreach ([__DIR__ . '/../../../autoload.php', __DIR__ . '/../vendor/autoload.php
 }
 
 use Smeghead\PhpVendorCredits\Command\CreditsCommand;
-use Symfony\Component\Console\Application;
 
-$app = new Application('php-vendor-credits', '0.0.4');
-$app->add(new CreditsCommand('php-vendor-credits'));
-$app->setDefaultCommand('php-vendor-credits', true);
-$app->run();
\ No newline at end of file
+$options = getopt('hvV', ['help', 'version'], $restIndex);
+
+$command = new CreditsCommand('0.0.5');
+$command->run($options, array_slice($argv, $restIndex));
diff --git a/composer.json b/composer.json
index af34af2..8b6d7b3 100644
--- a/composer.json
+++ b/composer.json
@@ -18,8 +18,7 @@
         }
     ],
     "require": {
-        "php" : ">=7.4",
-        "symfony/console": "^5.4|^6.4"
+        "php" : ">=7.4"
     },
     "scripts": {
         "test": [
diff --git a/src/Command/CreditsCommand.php b/src/Command/CreditsCommand.php
index e6ad688..c821a07 100644
--- a/src/Command/CreditsCommand.php
+++ b/src/Command/CreditsCommand.php
@@ -6,26 +6,48 @@
 
 use Smeghead\PhpVendorCredits\Lib\Usecase\CreditsUsecase;
 use Smeghead\PhpVendorCredits\Lib\Usecase\License;
-use Symfony\Component\Console\Command\Command;
-use Symfony\Component\Console\Input\InputArgument;
-use Symfony\Component\Console\Input\InputInterface;
-use Symfony\Component\Console\Output\OutputInterface;
 
-final class CreditsCommand extends Command
+final class CreditsCommand
 {
-    protected static $defaultName = 'credits';
+    private string $version;
 
-    protected function configure(): void
+    public function __construct(string $version)
     {
-        $this
-            ->setDescription('php-vendor-creadits creates CREDITS file from LICENSE files of dependencies')
-            ->addArgument('project directory', InputArgument::REQUIRED, 'Specify the directory where `composer.lock` exists.');
+        $this->version = $version;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output): int
+    /**
+     * @param array<string, string|bool> $options
+     * @param array<string> $args
+     */
+    public function run(array $options, array $args): void
     {
+        $usage =<<<EOU
+usage: php-vendor-credits [OPTIONS] <project directory>
+
+php-vendor-creadits creates CREDITS file from LICENSE files of dependencies
+
+OPTIONS
+  -h, --help                     show this help page.
+  -v,-V, --version               show version.
+
+EOU;
+
+        if (isset($options['v']) || isset($options['V']) || isset($options['version'])) {
+            fputs(STDERR, sprintf('php-vendor-creates %s%s', $this->version, PHP_EOL));
+            exit(-1);
+        }
+        if (isset($options['h']) || isset($options['help'])) {
+            fputs(STDERR, $usage);
+            exit(-1);
+        }
+
         /** @var string|null */
-        $rootDirectory = $input->getArgument('project directory');
+        $rootDirectory = array_shift($args);
+        if (empty($rootDirectory)) {
+            fputs(STDERR, "ERROR: required project directory.\n");
+            exit(-1);
+        }
         $usecase = new CreditsUsecase(strval($rootDirectory));
         $licenses = $usecase->execute();
 
@@ -37,7 +59,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 ================================================================
 
 EOC;
-        $output->write(implode("\n", array_map(
+        print(implode("\n", array_map(
             fn(License $l) => sprintf(
                 $format,
                 $l->getName(),
@@ -45,7 +67,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 $l->getContent()
             ), $licenses)));
 
-        return Command::SUCCESS;
+        return;
     }
 
-}
\ No newline at end of file
+}
diff --git a/test/integration/CreditsUsecaseTest.php b/test/integration/CreditsUsecaseTest.php
index b081d6d..02622e1 100644
--- a/test/integration/CreditsUsecaseTest.php
+++ b/test/integration/CreditsUsecaseTest.php
@@ -13,10 +13,6 @@ public function testThisProject(): void
 
         $licenses = $sut->execute();
 
-        $this->assertSame('psr/container', $licenses[0]->getName());
-        $this->assertSame('https://github.com/php-fig/container', $licenses[0]->getUrl());
-        $this->assertMatchesRegularExpression('@/vendor/psr/container/LICENSE$@', $licenses[0]->getPath());
-        $this->assertMatchesRegularExpression('/Copyright \(c\) 2013-2016 container-interop/', $licenses[0]->getContent());
-        $this->assertMatchesRegularExpression('/Copyright \(c\) 2016 PHP Framework Interoperability Group/', $licenses[0]->getContent());
+        $this->assertSame(0, count($licenses));
     }
 }