diff --git a/src/GovBr.php b/src/GovBr.php
index 83814b5..3c28e5e 100644
--- a/src/GovBr.php
+++ b/src/GovBr.php
@@ -81,6 +81,11 @@ public function getDefaultScopes(): array
         ];
     }
 
+    public function buildQueryString(array $params)
+    {
+        return http_build_query($params);
+    }
+
     public function getScopeSeparator(): string
     {
         return ' ';