diff --git a/gbus/tx/mysql/migrations.go b/gbus/tx/mysql/migrations.go
index 5b92d4e..c5436a6 100644
--- a/gbus/tx/mysql/migrations.go
+++ b/gbus/tx/mysql/migrations.go
@@ -34,6 +34,7 @@ func sagaStoreTableMigration(svcName string) *migrator.Migration {
 func outboxMigrations(svcName string) *migrator.Migration {
 
 	tblName := tx.GrabbitTableNameTemplate(svcName, "outbox")
+
 	query := `CREATE TABLE IF NOT EXISTS ` + tblName + ` (
 	rec_id int NOT NULL AUTO_INCREMENT,
 	message_id varchar(50) NOT NULL UNIQUE,
@@ -58,6 +59,21 @@ func outboxMigrations(svcName string) *migrator.Migration {
 			return nil
 		},
 	}
+
+}
+
+func outboxChangeColumnLength(svcName string) *migrator.Migration {
+	tblName := tx.GrabbitTableNameTemplate(svcName, "outbox")
+	increaseLengthSQL := `ALTER TABLE ` + tblName + ` MODIFY message_type VARCHAR(2048) NOT NULL, MODIFY exchange VARCHAR(2048) NOT NULL, MODIFY routing_key VARCHAR(2048) NOT NULL`
+	return &migrator.Migration{
+		Name: "increase column length to 2048",
+		Func: func(tx *sql.Tx) error {
+			if _, err := tx.Exec(increaseLengthSQL); err != nil {
+				return err
+			}
+			return nil
+		},
+	}
 }
 
 func timoutTableMigration(svcName string) *migrator.Migration {
@@ -107,6 +123,7 @@ func EnsureSchema(db *sql.DB, svcName string) {
 		sagaStoreTableMigration(svcName),
 		timoutTableMigration(svcName),
 		legacyMigrationsTable(svcName),
+		outboxChangeColumnLength(svcName),
 	))
 	if err != nil {
 		panic(err)