diff --git a/lib/NGCP/Schema/Result/invoices.pm b/lib/NGCP/Schema/Result/invoices.pm
index fc2fc4dd..06f98151 100644
--- a/lib/NGCP/Schema/Result/invoices.pm
+++ b/lib/NGCP/Schema/Result/invoices.pm
@@ -44,7 +44,7 @@ __PACKAGE__->add_columns(
   "amount_total",
   { data_type => "double precision", default_value => 0, is_nullable => 0 },
   "data",
-  { data_type => "blob", is_nullable => 1 },
+  { data_type => "mediumblob", is_nullable => 1 },
   "sent_date",
   { data_type => "datetime", is_nullable => 1, datetime_undef_if_invalid => 1, },