diff --git a/Controller/ApiBillController.php b/Controller/ApiBillController.php
index c482bd5..417b09c 100755
--- a/Controller/ApiBillController.php
+++ b/Controller/ApiBillController.php
@@ -271,7 +271,7 @@ final class ApiBillController extends Controller
             }
         }
 
-        $bill->setLanguage($billLanguage);
+        $bill->language = $billLanguage;
 
         $typeMapper = BillTypeMapper::get()
             ->with('l11n')
diff --git a/Controller/Controller.php b/Controller/Controller.php
index 86c389d..7e78db2 100755
--- a/Controller/Controller.php
+++ b/Controller/Controller.php
@@ -65,7 +65,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string[]
      * @since 1.0.0
      */
-    protected static array $providing = [];
+    public static array $providing = [];
 
     /**
      * Dependencies.
@@ -73,5 +73,5 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string[]
      * @since 1.0.0
      */
-    protected static array $dependencies = [];
+    public static array $dependencies = [];
 }