Syntax error, unrecognized expression: input['type=radio']:checked in jQuery 1.12.4 from 1.7.1js

Question

The below code is not working where $(this).children("div").children("input['type=radio']:checked in jquery 1.12.4 JS and is working for 1.7.1

$(".highlightedRow").each(function () {
                if ($(this).children("div").children("input['type=radio']:checked").length == 0) {
                    $(this).css("background-color", "#F0AE3D");
                    flag = 1;
                }
                else {
                    $(this).css("background-color", "#99E599");
                }
            });

Please help if someone had similar problem while upgrading jquery