Filter the posts based on specific category in views

Hi guys. I have a custom post type 'schedule' and I want to filter the post for specific category. I tried it but it doesn't work 🙁

<div class="calendar-container">
{% set args = { post_type: "schedule", posts_per_page: 4, post_term: "category-1" } %}
{% set posts = mb.get_posts( args ) %}
{% for post in posts %}
        <div class="calendar__card" id="schedule-">
            <div class="calendar__image_wrapper">
                {{ mb.get_the_post_thumbnail( post.ID, 'medium') }}
<!--                 {{ mb.get_terms( { taxonomy: 'schedule_category' } ) }} -->
            </div>
            <div class="calendar__description">
                <h6 class="calendar__activity">Activity: <span style="font-family: Josefin Sans;">{{ post.ufp_schedule }}</span></h6>
                <h6 class="calendar__schedule">Schedule: <span style="font-family: Josefin Sans;">{{ post.ufp_schedule }}</span></h6>
                <a href="{{ mb.get_permalink( post ) }}" class="calendar-btn">View More</a>
            </div>
        </div>
    {% endfor %}
</div>