diff --git a/src/Auth/Authenticatable.php b/src/Auth/Authenticatable.php
index 51de9676..29963ff8 100644
--- a/src/Auth/Authenticatable.php
+++ b/src/Auth/Authenticatable.php
@@ -56,7 +56,7 @@ public function getAuthPassword(): string
     /**
      * Get the token value for the "remember me" session.
      */
-    public function getRememberToken(): string
+    public function getRememberToken(): null|string
     {
         return $this->rememberToken;
     }