I'm trying to load my own css file to replace base.css in order to customize Django Admin
{% extends "admin/base.html" %}
{% load static %}
{% block title %}VSPM{% endblock %}
{% block branding %}
<h1 id="site-name"><a href="{% url 'admin:index' %}">{{ site_header|default:_('Django administration') }}</a></h1>
{% endblock %}
{% block stylesheet %}{% static "admin/css/theme.min.css" %}{% endblock %}
{% block nav-global %}{% endblock %}
But the css file isn't loading in Django admin. What am I doing wrong?