diff --git a/src/Migrations/Version20180703112314.php b/src/Migrations/Version20180703112314.php
index 3020b3bac..cec86cc2d 100644
--- a/src/Migrations/Version20180703112314.php
+++ b/src/Migrations/Version20180703112314.php
@@ -36,16 +36,16 @@ public function up(Schema $schema): void
             return;
         }
 
-        $this->addSql('CREATE TABLE sylius_refund_credit_memo (id VARCHAR(255) NOT NULL, from_id INT DEFAULT NULL, to_id INT DEFAULT NULL, channel_id INT DEFAULT NULL, order_id INT DEFAULT NULL, number VARCHAR(255) NOT NULL, total INT NOT NULL, currency_code VARCHAR(255) NOT NULL, locale_code VARCHAR(255) NOT NULL, comment LONGTEXT NOT NULL, issued_at DATETIME NOT NULL COMMENT \'(DC2Type:datetime_immutable)\', UNIQUE INDEX UNIQ_5C4F333196901F54 (number), UNIQUE INDEX UNIQ_5C4F333178CED90B (from_id), UNIQUE INDEX UNIQ_5C4F333130354A65 (to_id), INDEX IDX_5C4F333172F5A1AA (channel_id), INDEX IDX_5C4F33318D9F6D38 (order_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_credit_memo_line_items (credit_memo_id VARCHAR(255) NOT NULL, line_item_id INT NOT NULL, INDEX IDX_1453B90E8E574316 (credit_memo_id), UNIQUE INDEX UNIQ_1453B90EA7CBD339 (line_item_id), PRIMARY KEY(credit_memo_id, line_item_id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_credit_memo_tax_items (credit_memo_id VARCHAR(255) NOT NULL, tax_item_id INT NOT NULL, INDEX IDX_9BBDFBE28E574316 (credit_memo_id), UNIQUE INDEX UNIQ_9BBDFBE25327F254 (tax_item_id), PRIMARY KEY(credit_memo_id, tax_item_id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_credit_memo_sequence (id INT AUTO_INCREMENT NOT NULL, idx INT NOT NULL, version INT DEFAULT 1 NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_customer_billing_data (id INT AUTO_INCREMENT NOT NULL, first_name VARCHAR(255) NOT NULL, last_name VARCHAR(255) NOT NULL, street VARCHAR(255) NOT NULL, postcode VARCHAR(255) NOT NULL, country_code VARCHAR(255) NOT NULL, city VARCHAR(255) NOT NULL, company VARCHAR(255) DEFAULT NULL, province_name VARCHAR(255) DEFAULT NULL, province_code VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_line_item (id INT AUTO_INCREMENT NOT NULL, name VARCHAR(255) NOT NULL, quantity INT NOT NULL, unit_net_price INT NOT NULL, unit_gross_price INT NOT NULL, net_value INT NOT NULL, gross_value INT NOT NULL, tax_amount INT NOT NULL, tax_rate VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_refund (id INT AUTO_INCREMENT NOT NULL, order_id INT DEFAULT NULL, amount INT NOT NULL, refunded_unit_id INT DEFAULT NULL, type VARCHAR(256) NOT NULL COMMENT \'(DC2Type:sylius_refund_refund_type)\', INDEX IDX_DEF86A0E8D9F6D38 (order_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_refund_payment (id INT AUTO_INCREMENT NOT NULL, payment_method_id INT DEFAULT NULL, order_id INT DEFAULT NULL, amount INT NOT NULL, currency_code VARCHAR(255) NOT NULL, state VARCHAR(255) NOT NULL, INDEX IDX_EC283EA55AA1164F (payment_method_id), INDEX IDX_EC283EA58D9F6D38 (order_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_shop_billing_data (id INT AUTO_INCREMENT NOT NULL, company VARCHAR(255) DEFAULT NULL, tax_id VARCHAR(255) DEFAULT NULL, country_code VARCHAR(255) DEFAULT NULL, street VARCHAR(255) DEFAULT NULL, city VARCHAR(255) DEFAULT NULL, postcode VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
-        $this->addSql('CREATE TABLE sylius_refund_tax_item (id INT AUTO_INCREMENT NOT NULL, label VARCHAR(255) NOT NULL, amount INT NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET UTF8 COLLATE `UTF8_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_credit_memo (id VARCHAR(255) NOT NULL, from_id INT DEFAULT NULL, to_id INT DEFAULT NULL, channel_id INT DEFAULT NULL, order_id INT DEFAULT NULL, number VARCHAR(255) NOT NULL, total INT NOT NULL, currency_code VARCHAR(255) NOT NULL, locale_code VARCHAR(255) NOT NULL, comment LONGTEXT NOT NULL, issued_at DATETIME NOT NULL COMMENT \'(DC2Type:datetime_immutable)\', UNIQUE INDEX UNIQ_5C4F333196901F54 (number), UNIQUE INDEX UNIQ_5C4F333178CED90B (from_id), UNIQUE INDEX UNIQ_5C4F333130354A65 (to_id), INDEX IDX_5C4F333172F5A1AA (channel_id), INDEX IDX_5C4F33318D9F6D38 (order_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_credit_memo_line_items (credit_memo_id VARCHAR(255) NOT NULL, line_item_id INT NOT NULL, INDEX IDX_1453B90E8E574316 (credit_memo_id), UNIQUE INDEX UNIQ_1453B90EA7CBD339 (line_item_id), PRIMARY KEY(credit_memo_id, line_item_id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_credit_memo_tax_items (credit_memo_id VARCHAR(255) NOT NULL, tax_item_id INT NOT NULL, INDEX IDX_9BBDFBE28E574316 (credit_memo_id), UNIQUE INDEX UNIQ_9BBDFBE25327F254 (tax_item_id), PRIMARY KEY(credit_memo_id, tax_item_id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_credit_memo_sequence (id INT AUTO_INCREMENT NOT NULL, idx INT NOT NULL, version INT DEFAULT 1 NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_customer_billing_data (id INT AUTO_INCREMENT NOT NULL, first_name VARCHAR(255) NOT NULL, last_name VARCHAR(255) NOT NULL, street VARCHAR(255) NOT NULL, postcode VARCHAR(255) NOT NULL, country_code VARCHAR(255) NOT NULL, city VARCHAR(255) NOT NULL, company VARCHAR(255) DEFAULT NULL, province_name VARCHAR(255) DEFAULT NULL, province_code VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_line_item (id INT AUTO_INCREMENT NOT NULL, name VARCHAR(255) NOT NULL, quantity INT NOT NULL, unit_net_price INT NOT NULL, unit_gross_price INT NOT NULL, net_value INT NOT NULL, gross_value INT NOT NULL, tax_amount INT NOT NULL, tax_rate VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_refund (id INT AUTO_INCREMENT NOT NULL, order_id INT DEFAULT NULL, amount INT NOT NULL, refunded_unit_id INT DEFAULT NULL, type VARCHAR(256) NOT NULL COMMENT \'(DC2Type:sylius_refund_refund_type)\', INDEX IDX_DEF86A0E8D9F6D38 (order_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_refund_payment (id INT AUTO_INCREMENT NOT NULL, payment_method_id INT DEFAULT NULL, order_id INT DEFAULT NULL, amount INT NOT NULL, currency_code VARCHAR(255) NOT NULL, state VARCHAR(255) NOT NULL, INDEX IDX_EC283EA55AA1164F (payment_method_id), INDEX IDX_EC283EA58D9F6D38 (order_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_shop_billing_data (id INT AUTO_INCREMENT NOT NULL, company VARCHAR(255) DEFAULT NULL, tax_id VARCHAR(255) DEFAULT NULL, country_code VARCHAR(255) DEFAULT NULL, street VARCHAR(255) DEFAULT NULL, city VARCHAR(255) DEFAULT NULL, postcode VARCHAR(255) DEFAULT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('CREATE TABLE sylius_refund_tax_item (id INT AUTO_INCREMENT NOT NULL, label VARCHAR(255) NOT NULL, amount INT NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
         $this->addSql('ALTER TABLE sylius_refund_credit_memo ADD CONSTRAINT FK_5C4F333178CED90B FOREIGN KEY (from_id) REFERENCES sylius_refund_customer_billing_data (id)');
         $this->addSql('ALTER TABLE sylius_refund_credit_memo ADD CONSTRAINT FK_5C4F333130354A65 FOREIGN KEY (to_id) REFERENCES sylius_refund_shop_billing_data (id)');
         $this->addSql('ALTER TABLE sylius_refund_credit_memo ADD CONSTRAINT FK_5C4F333172F5A1AA FOREIGN KEY (channel_id) REFERENCES sylius_channel (id)');