diff --git a/src/Database/migrations/2022_02_06_194000_create_shoppingcart_items_table.php b/src/Database/migrations/2022_02_06_194000_create_shoppingcart_items_table.php
index 938f811..8e4a05a 100644
--- a/src/Database/migrations/2022_02_06_194000_create_shoppingcart_items_table.php
+++ b/src/Database/migrations/2022_02_06_194000_create_shoppingcart_items_table.php
@@ -27,7 +27,7 @@ class CreateShoppingcartItemsTable extends Migration
             $table->unsignedBigInteger('price')->nullable();
             $table->unsignedFloat('discount_rate')->nullable();
             $table->unsignedBigInteger('discount_fixed')->nullable();
-            $table->unsignedFloat('taxRate')->nullable();
+            $table->float('taxRate')->nullable();
 
             /* Custom-Options of the CartItem */
             $table->json('options');