1 files changed, 1 insertions, 1 deletions
diff --git a/vendor/bshaffer/oauth2-server-php/src/OAuth2/Storage/JwtAccessToken.php b/vendor/bshaffer/oauth2-server-php/src/OAuth2/Storage/JwtAccessToken.php
index 99ec6481c..73c5a3e62 100644
--- a/vendor/bshaffer/oauth2-server-php/src/OAuth2/Storage/JwtAccessToken.php
+++ b/vendor/bshaffer/oauth2-server-php/src/OAuth2/Storage/JwtAccessToken.php
@@ -21,7 +21,7 @@ class JwtAccessToken implements JwtAccessTokenInterface
      *                                                                is not necessary when using this grant type.
      * @param OAuth2\Encryption\EncryptionInterface $encryptionUtil   OPTIONAL class to use for "encode" and "decode" functions.
      */
-    public function __construct(PublicKeyInterface $publicKeyStorage, AccessTokenInterface $tokenStorage = null, EncryptionInterface $encryptionUtil = null)
+    public function __construct(PublicKeyInterface $publicKeyStorage, ?AccessTokenInterface $tokenStorage = null, ?EncryptionInterface $encryptionUtil = null)
     {
         $this->publicKeyStorage = $publicKeyStorage;
         $this->tokenStorage = $tokenStorage;