diff --git a/src/Auth/Authenticator/PrivateKeyAuthenticator.php b/src/Auth/Authenticator/PrivateKeyAuthenticator.php
index a8806ba..e9874ca 100644
--- a/src/Auth/Authenticator/PrivateKeyAuthenticator.php
+++ b/src/Auth/Authenticator/PrivateKeyAuthenticator.php
@@ -80,7 +80,7 @@ private static function getToken(array $config)
             ->expiresAt($expires)
             ->issuedAt($issued)
             ->issuedBy((string) $config['appId']);
-        
+
         return $builder->getToken(
             $configuration->signer(),
             $configuration->signingKey()