diff --git a/src/Resources/config/grids/bitbag_shipping_export.yml b/src/Resources/config/grids/bitbag_shipping_export.yml
index d27049a..eaa0cec 100644
--- a/src/Resources/config/grids/bitbag_shipping_export.yml
+++ b/src/Resources/config/grids/bitbag_shipping_export.yml
@@ -17,7 +17,7 @@ sylius_grid:
                     type: twig
                     label: sylius.ui.order
                     path: .
-                    sortable: shipment.order
+                    sortable: shipment.order.number
                     options:
                         template: "@BitBagSyliusShippingExportPlugin/ShippingExport/Grid/Field/orderNumber.html.twig"
                 shipment:
@@ -38,7 +38,7 @@ sylius_grid:
                     type: twig
                     label: sylius.ui.shipping_method
                     path: .
-                    sortable: shipment.method
+                    sortable: shipment.method.code
                     options:
                         template: "@BitBagSyliusShippingExportPlugin/ShippingExport/Grid/Field/shippingMethod.html.twig"
                 labelPath: