diff --git a/src/entity/trx_transactions.ts b/src/entity/trx_transactions.ts
index b948f71..c0e342f 100644
--- a/src/entity/trx_transactions.ts
+++ b/src/entity/trx_transactions.ts
@@ -50,8 +50,8 @@ export class TrxTransaction {
 	type_transfer: TrxTransactionTransferStatus;
 
 	@Column({
-		nullable: false,
-		default: false,
+		nullable: true,
+		default: null,
 	})
 	is_maker_approved: boolean;
 
@@ -65,8 +65,8 @@ export class TrxTransaction {
 	maker_approved_at: Date;
 
 	@Column({
-		nullable: false,
-		default: false,
+		nullable: true,
+		default: null,
 	})
 	is_checker_approved: boolean;
 
@@ -80,8 +80,8 @@ export class TrxTransaction {
 	checker_approved_at: Date;
 
 	@Column({
-		nullable: false,
-		default: false,
+		nullable: true,
+		default: null,
 	})
 	is_signer_approved: boolean;