diff --git a/internal/processor/ingredient_processor.go b/internal/processor/ingredient_processor.go
index 7e951c3..7655229 100644
--- a/internal/processor/ingredient_processor.go
+++ b/internal/processor/ingredient_processor.go
@@ -180,7 +180,10 @@ func (p *IngredientProcessorImpl) UpdateIngredient(ctx context.Context, id uuid.
 	}
 
 	// Update fields
-	existingIngredient.OutletID = req.OutletID
+	if req.OutletID != nil {
+		existingIngredient.OutletID = req.OutletID
+	}
+
 	existingIngredient.Name = req.Name
 	existingIngredient.UnitID = req.UnitID
 	existingIngredient.Cost = req.Cost
diff --git a/internal/repository/ingredient_repository.go b/internal/repository/ingredient_repository.go
index 31e618e..6682fa7 100644
--- a/internal/repository/ingredient_repository.go
+++ b/internal/repository/ingredient_repository.go
@@ -66,7 +66,11 @@ func (r *IngredientRepository) GetAll(ctx context.Context, organizationID uuid.U
 }
 
 func (r *IngredientRepository) Update(ctx context.Context, ingredient *entities.Ingredient) error {
-	result := r.db.WithContext(ctx).Where("id = ? AND organization_id = ?", ingredient.ID, ingredient.OrganizationID).Save(ingredient)
+	result := r.db.WithContext(ctx).
+		Model(&entities.Ingredient{}).
+		Where("id = ? AND organization_id = ?", ingredient.ID, ingredient.OrganizationID).
+		Select("outlet_id", "name", "unit_id", "cost", "stock", "is_semi_finished", "is_active", "metadata", "updated_at").
+		Updates(ingredient)
 	if result.Error != nil {
 		return result.Error
 	}