Don’t update modified post date when user add a product review or comment?

I am using WooCommerce and I added the following code on content-single-product.phptemplate to show last update of product:

<p class="data-label">Updated</p>
<p class="info"> <?php echo get_the_modified_time( 'F j, Y' ); ?> </p>

On single product pages I have enable reviews tab and comment tab so customer can add comment on a product.

The problem is when user add new review or comment to product, the last update date for the

product is changed to the date of its comment.

I don’t want to change the last update date of product when user add new comment on any product.