diff --git a/composer.json b/composer.json
index b7081f3..c521e9c 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     ],
     "minimum-stability": "dev",
     "prefer-stable": true,
-    "version": "0.3.2",
+    "version": "0.3.3",
     "license": "MIT",
     "authors": [
         {
diff --git a/src/Entities/Delivery/Delivery.php b/src/Entities/Delivery/Delivery.php
index b3949ed..19b364f 100644
--- a/src/Entities/Delivery/Delivery.php
+++ b/src/Entities/Delivery/Delivery.php
@@ -46,6 +46,10 @@ class Delivery extends Entity
     protected ?int $chargeFreeLimit;
     protected DeliveryChargeType $chargeType;
     protected Charge $charge;
+    protected bool $taxIncluded;
+
+    protected bool $slipNumberUse;
+    protected ?string $slipNumberUrl;
 
     protected ?string $memo;
     protected ?string $memo2;