modify woocommerce my account page

Greetings:

I want modify the form tag of the woocommerce form on My account page

the html code of the form is:

<form method="post" class="register">
<p class="form-row form-row-wide">
<p class="form-row form-row-wide">
<!-- Spam Trap -->
<div style="left: -999em; position: absolute;">
<p class="form-row form-row-wide">
<p class="form-row">
</form>

and I want it to be like:

<form method="post" class="register" enctype="multipart/form-data" encoding="multipart/form-data">
<p class="form-row form-row-wide">
<p class="form-row form-row-wide">
<!-- Spam Trap -->
<div style="left: -999em; position: absolute;">
<p class="form-row form-row-wide">
<p class="form-row">
</form>

to be able to upload images in the database.

Regards.