diff --git a/src/Middleware/AuthTokenMiddleware.php b/src/Middleware/AuthTokenMiddleware.php
index 842876eb9..228b4a936 100644
--- a/src/Middleware/AuthTokenMiddleware.php
+++ b/src/Middleware/AuthTokenMiddleware.php
@@ -126,7 +126,7 @@ public function __invoke(callable $handler)
     /**
      * Fetch auth headers.
      *
-     * @return array<string, array|string>
+     * @return array<string, string[]|string>
      */
     private function fetchAuthHeaders()
     {