Why is Firebase hosting website not updating

I have all my folders inside of the public folder, so when I make a change in an HTML or CSS file and run the command firebase deploy the changes are not made. So I have a title container and the background was color but in the CSS I changed it to a picture (i am trying to create a parallax effect). The problem occurred when I deployed the website, which was saved and closed, but yet the website still had the color as a background after deploying this. Any ideas on how to fix this?


.hero {
    padding-top: 150px;
    padding-bottom: 150px;
    text-align: center;
    vertical-align: center;
    background-color: #FF0000;
    background-repeat: no-repeat;
    background-size: cover;
}

That is the original

the deployed code:


padding-top: 150px;
    padding-bottom: 150px;
    text-align: center;
    vertical-align: center;
    background-image: url("../images/contactusback.jpg");
    background-repeat: no-repeat;
    background-size: cover;
***