diff --git a/src/Response.php b/src/Response.php
index 2f5ed81..3f3ca5b 100644
--- a/src/Response.php
+++ b/src/Response.php
@@ -388,7 +388,7 @@ public function isSuccessful()
      */
     public function isRedirect()
     {
-        return in_array($this->getStatusCode(), [301, 302, 303, 307]);
+        return in_array($this->getStatusCode(), [301, 302, 303, 307, 308]);
     }
 
     /**