diff --git a/src/Composer/Console/Application.php b/src/Composer/Console/Application.php
index a71596bd5..4d1627fa7 100644
--- a/src/Composer/Console/Application.php
+++ b/src/Composer/Console/Application.php
@@ -368,7 +368,9 @@ class Application extends BaseApplication
     }
 
     /**
-     * {@inheritDoc}
+     * @param \Exception $exception
+     *
+     * @return void
      */
     private function hintCommonErrors($exception)
     {
@@ -451,6 +453,8 @@ class Application extends BaseApplication
 
     /**
      * Removes the cached composer instance
+     *
+     * @return void
      */
     public function resetComposer()
     {
diff --git a/src/Composer/Console/GithubActionError.php b/src/Composer/Console/GithubActionError.php
index c862dd9be..c9e34717c 100644
--- a/src/Composer/Console/GithubActionError.php
+++ b/src/Composer/Console/GithubActionError.php
@@ -30,6 +30,8 @@ final class GithubActionError
      * @param string      $message
      * @param null|string $file
      * @param null|int    $line
+     *
+     * @return void
      */
     public function emit($message, $file = null, $line = null)
     {
diff --git a/src/Composer/Console/HtmlOutputFormatter.php b/src/Composer/Console/HtmlOutputFormatter.php
index d39027f02..f15494b58 100644
--- a/src/Composer/Console/HtmlOutputFormatter.php
+++ b/src/Composer/Console/HtmlOutputFormatter.php
@@ -13,6 +13,7 @@
 namespace Composer\Console;
 
 use Symfony\Component\Console\Formatter\OutputFormatter;
+use Symfony\Component\Console\Formatter\OutputFormatterStyle;
 
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
@@ -51,7 +52,7 @@ class HtmlOutputFormatter extends OutputFormatter
     );
 
     /**
-     * @param array $styles Array of "name => FormatterStyle" instances
+     * @param array<string, OutputFormatterStyle> $styles Array of "name => FormatterStyle" instances
      */
     public function __construct(array $styles = array())
     {
@@ -59,6 +60,8 @@ class HtmlOutputFormatter extends OutputFormatter
     }
 
     /**
+     * @param string $message
+     *
      * @return string
      */
     public function format($message)
@@ -71,6 +74,8 @@ class HtmlOutputFormatter extends OutputFormatter
     }
 
     /**
+     * @param string[] $matches
+     *
      * @return string
      */
     private function formatHtml($matches)