diff --git a/CHANGELOG for v1.x.x.md b/CHANGELOG for v1.x.x.md
index eed7a7f61..c285bd804 100644
--- a/CHANGELOG for v1.x.x.md	
+++ b/CHANGELOG for v1.x.x.md	
@@ -56,6 +56,8 @@
 
 * #2459 [fixed] - shipping address field warning for guest customer not translated.
 
+* #2463 [fixed] - Tax rate is not update on same product.
+
 * #2469 [fixed] - Displaying wrong amount for bundle product in cart.
 
 * #2479 [fixed] - showing total review in recent view product list.
diff --git a/packages/Webkul/CartRule/src/Database/Migrations/2019_05_13_024321_create_cart_rules_table.php b/packages/Webkul/CartRule/src/Database/Migrations/2019_05_13_024321_create_cart_rules_table.php
index 6912df3c1..bb0a4658d 100644
--- a/packages/Webkul/CartRule/src/Database/Migrations/2019_05_13_024321_create_cart_rules_table.php
+++ b/packages/Webkul/CartRule/src/Database/Migrations/2019_05_13_024321_create_cart_rules_table.php
@@ -47,6 +47,16 @@ class CreateCartRulesTable extends Migration
      */
     public function down()
     {
+        Schema::table('cart_rule_customers', function (Blueprint $table) {
+            $table->dropForeign('cart_rule_customers_cart_rule_id_foreign');
+        });
+
+        Schema::table('cart_rule_coupons', function (Blueprint $table) {
+            $table->dropForeign('cart_rule_coupons_cart_rule_id_foreign');
+        });
+
+         // Schema::dropIfExists('cart_rule_coupons');
+
         Schema::dropIfExists('cart_rules');
     }
 }
diff --git a/packages/Webkul/Customer/src/Database/Migrations/2018_07_24_082930_create_customers_table.php b/packages/Webkul/Customer/src/Database/Migrations/2018_07_24_082930_create_customers_table.php
index 92fd6f824..1d0c43d57 100755
--- a/packages/Webkul/Customer/src/Database/Migrations/2018_07_24_082930_create_customers_table.php
+++ b/packages/Webkul/Customer/src/Database/Migrations/2018_07_24_082930_create_customers_table.php
@@ -39,6 +39,12 @@ class CreateCustomersTable extends Migration
      */
     public function down()
     {
+        Schema::table('cart_rule_customers', function (Blueprint $table) {
+            $table->dropForeign('cart_rule_customers_customer_id_foreign');
+        });
+
+      //  Schema::dropIfExists('cart_rule_customers');
+
         Schema::dropIfExists('customers');
     }
 }