diff --git a/src/EventHandlers/PrePoolCreateEventHandler.php b/src/EventHandlers/PrePoolCreateEventHandler.php
index e12f2a6..b7529b2 100644
--- a/src/EventHandlers/PrePoolCreateEventHandler.php
+++ b/src/EventHandlers/PrePoolCreateEventHandler.php
@@ -16,7 +16,7 @@ use Composer\Plugin\PrePoolCreateEvent;
 /**
  * @internal
  */
-class PrePoolCreateEventHandler
+final class PrePoolCreateEventHandler
 {
     /** @var Composer */
     private $composer;
diff --git a/src/Helpers/LicenseHelper.php b/src/Helpers/LicenseHelper.php
index 3dafced..5c1c1ac 100644
--- a/src/Helpers/LicenseHelper.php
+++ b/src/Helpers/LicenseHelper.php
@@ -10,7 +10,7 @@ use Composer\Package\CompletePackageInterface;
 /**
  * @internal
  */
-class LicenseHelper
+final class LicenseHelper
 {
     public static function isPermitted(CompletePackageInterface $package, Config $config): bool
     {