css help, do not want bold links, edited css but it wont update

The category links on my blog here” https://www.puifonluong.com/blog/ stay bold even when I edit the css. I dont want the links to be bold, even when I delete the ‘font-weight’ sections in the code below, the links still remain bold. Does anyone know how what I can do?

/* Category Widget */
.widget_categories ul li {font-weight: normal; color: #8B8A8A; text-align: right; padding: 2px 4px; clear: both; float:left; width:100%; display:block; border-bottom:1px solid #F5F5F5; }
#footer .widget_categories ul li { border-bottom:none; }
.widget_categories ul li a { text-align: left; float: left;}
.widget_categories ul li a:hover {color: #8B8A8A; text-decoration: none;}
.widget_categories ul li:hover {background: #; color: #8B8A8A; -webkit-border-radius: 3px; -moz-border-radius: 3px; border-radius: 3px; }
#footer .widget_categories ul li:hover { background: #393B3D; }
.widget_categories ul li:hover a {color: #8B8A8A; }