diff --git a/src/Provider/AbstractProvider.php b/src/Provider/AbstractProvider.php
index 07f66b8c..293a54d6 100644
--- a/src/Provider/AbstractProvider.php
+++ b/src/Provider/AbstractProvider.php
@@ -662,7 +662,7 @@ public function getRequest($method, $url, array $options = [])
      *
      * @param  string $method
      * @param  string $url
-     * @param  AccessTokenInterface|string $token
+     * @param  AccessTokenInterface|string|null $token
      * @param  array $options Any of "headers", "body", and "protocolVersion".
      * @return RequestInterface
      */