Got error after updating 3.2.3

Every time creating a pdf invoice or packing slips we got the error message:

The WC_Product::get_dimensions argument is deprecated since version 3.0. By default, get_dimensions has an argument set to true so that HTML is returned. This is to support the legacy version of the method. To get HTML dimensions, instead use wc_format_dimensions() function. Pass false to this method to return an array of dimensions. This will be the new default behavior in future versions.

Please check it, thank you.