diff --git a/migrations/000.313.sql b/migrations/000.313.sql
index bc63abe..b516bbe 100644
--- a/migrations/000.313.sql
+++ b/migrations/000.313.sql
@@ -1,7 +1,7 @@
 -- P5-6900: add brazil delivery country
 
 insert into "delivery-methods_prices" (method, option, option_value, currency, price, territory) values
-    (3, null, null, 'EUR', 0, 'BR'), --no delivery
-    (10, null, null, 'EUR', 56, 'BR'), -- dhl
-    (11, null, null, 'EUR', 0, 'BR'), -- samples
-    (16, null, null, 'EUR', 49, 'BR'); -- dhl economy world
+    (3, '', '', 'EUR', 0, 'BR'), --no delivery
+    (10, '', '', 'EUR', 56, 'BR'), -- dhl
+    (11, '', '', 'EUR', 0, 'BR'), -- samples
+    (16, '', '', 'EUR', 49, 'BR'); -- dhl economy world