Validation error

My validation software has raised this code:

<script type='text/javascript' src='//www.google.com/recaptcha/api.js?hl=en_GB&onload=sdm_reCaptcha&render=explicit&ver=4.9.6'></script>

It says:

Media type “text/javascript” is obsolete, recommend “application/javascript” instead

Could you tweak that please?