How to set old() to the dropdown menu ?

Hello,
I'm building form where user can submit some inputs. I check for validation errors and re display the form with error messages and also i use <?=old('filed_name')?> to display old entered data.

Everything works for input box but, i have dropdown box where user cans select gender, But how we can show the old data on this dropdown.

My code (Textbox) :

Code:

<input type="text" name="first_name" value="<?=old('first_name')?>" id="firstName">

My code (Dropdown) : 

PHP Code:

  <select id="defaultSelect" value="<?= old('gender') ?>" name="gender" class="form-select">
                                    <option value="">Select</option>
                                    <option value="Male">Male</option>
                                    <option value="Female">Female</option>

                                </select> 


But this dropdown not working with old selected values.