diff --git a/repository/crud_repository.go b/repository/crud_repository.go
index 57bc2eb..a8813cd 100644
--- a/repository/crud_repository.go
+++ b/repository/crud_repository.go
@@ -9,17 +9,17 @@ import (
 )
 
 type CrudRepository[T any] interface {
-	Create(et T) (*T, error)
+	Create(et *T) (*T, error)
 	FindByID(id uuid.UUID) (*T, error)
-	Update(et T) (*T, error)
+	Update(et *T) (*T, error)
 	Delete(id uuid.UUID) error
 	ListAll() ([]T, error)
-	First(et T) (*T, error)
-	FindWithEntity(et T) ([]T, error)
+	First(et *T) (*T, error)
+	FindWithEntity(et *T) ([]T, error)
 	FindWithConditions(conditions map[string]any) ([]T, error)
 	FindWithOrConditions(conditions map[string]any) ([]T, error)
 	CountWithConditions(conditions map[string]any) (int64, error)
-	CountWithEntity(et T) (int64, error)
+	CountWithEntity(et *T) (int64, error)
 }
 
 func NewCrudRepository[T any](db *gorm.DB) CrudRepository[T] {
@@ -30,13 +30,13 @@ type crudRepository[T any] struct {
 	db *gorm.DB
 }
 
-func (r *crudRepository[T]) Create(et T) (*T, error) {
+func (r *crudRepository[T]) Create(et *T) (*T, error) {
 	v := validator.New()
 	if err := v.Struct(et); err != nil {
 		return nil, err
 	}
-	err := r.db.Create(&et).Error
-	return &et, err
+	err := r.db.Create(et).Error
+	return et, err
 }
 
 func (r *crudRepository[T]) FindByID(id uuid.UUID) (*T, error) {
@@ -45,13 +45,13 @@ func (r *crudRepository[T]) FindByID(id uuid.UUID) (*T, error) {
 	return &et, err
 }
 
-func (r *crudRepository[T]) Update(et T) (*T, error) {
+func (r *crudRepository[T]) Update(et *T) (*T, error) {
 	v := validator.New()
 	if err := v.Struct(et); err != nil {
 		return nil, err
 	}
-	err := r.db.Save(&et).Error
-	return &et, err
+	err := r.db.Save(et).Error
+	return et, err
 }
 
 func (r *crudRepository[T]) Delete(id uuid.UUID) error {
@@ -65,13 +65,13 @@ func (r *crudRepository[T]) ListAll() ([]T, error) {
 	return entities, err
 }
 
-func (r *crudRepository[T]) First(et T) (*T, error) {
+func (r *crudRepository[T]) First(et *T) (*T, error) {
 	var existed T
 	err := r.db.Where(et).First(&existed).Error
 	return &existed, err
 }
 
-func (r *crudRepository[T]) FindWithEntity(et T) ([]T, error) {
+func (r *crudRepository[T]) FindWithEntity(et *T) ([]T, error) {
 	var entities []T
 	err := r.db.Where(et).Find(&entities).Error
 	return entities, err
@@ -82,6 +82,7 @@ func (r *crudRepository[T]) FindWithConditions(conditions map[string]any) ([]T,
 	err := r.db.Where(conditions).Find(&entities).Error
 	return entities, err
 }
+
 func (r *crudRepository[T]) FindWithOrConditions(conditions map[string]any) ([]T, error) {
 	var entities []T
 	query := r.db.Model(new(T))
@@ -98,7 +99,7 @@ func (r *crudRepository[T]) CountWithConditions(conditions map[string]any) (int6
 	return count, err
 }
 
-func (r *crudRepository[T]) CountWithEntity(et T) (int64, error) {
+func (r *crudRepository[T]) CountWithEntity(et *T) (int64, error) {
 	var count int64
 	err := r.db.Model(new(T)).Where(et).Count(&count).Error
 	return count, err