diff --git a/manager/models/audit.go b/manager/models/audit.go
index ce861868c..fa2f95d3a 100644
--- a/manager/models/audit.go
+++ b/manager/models/audit.go
@@ -60,7 +60,7 @@ type Audit struct {
 	// Operation represents the operation, it will be the HTTP method for API events.
 	Operation string `gorm:"column:operation;type:varchar(256);not null;comment:operation" json:"operation"`
 	// OperatedAt represents the operation time.
-	OperatedAt time.Time `gorm:"column:operated_at;type:timestamp;not null;comment:operation time" json:"operated_at"`
+	OperatedAt time.Time `gorm:"column:operated_at;type:timestamp;default:current_timestamp;comment:operated at" json:"operated_at"`
 	// State represents the state, it indicates the state of the operation, e.g SUCCESS for API status code >= 200 & < 300.
 	State string `gorm:"column:state;type:varchar(100);not null;comment:state" json:"state"`
 	// Path represents the request path, it will be the URL path for API events.
diff --git a/manager/models/models.go b/manager/models/models.go
index 50cf58850..58c7cf971 100644
--- a/manager/models/models.go
+++ b/manager/models/models.go
@@ -30,8 +30,8 @@ import (
 
 type BaseModel struct {
 	ID        uint                  `gorm:"primarykey;comment:id" json:"id"`
-	CreatedAt time.Time             `gorm:"column:created_at;type:timestamp;default:current_timestamp" json:"created_at"`
-	UpdatedAt time.Time             `gorm:"column:updated_at;type:timestamp;default:current_timestamp" json:"updated_at"`
+	CreatedAt time.Time             `gorm:"column:created_at;type:timestamp;default:current_timestamp;comment:created at" json:"created_at"`
+	UpdatedAt time.Time             `gorm:"column:updated_at;type:timestamp;default:current_timestamp;comment:updated at" json:"updated_at"`
 	IsDel     soft_delete.DeletedAt `gorm:"softDelete:flag;comment:soft delete flag" json:"is_del"`
 }