update foreignkey field in Django

Question

have the following models

    Class FootballWebsite(models.Model):
        """Football service website."""
        url = models.URLField(validators=[validate_club_url], unique=True)
        #Football service
        id = models.CharField(primary_key=True, unique=True)
        sub_categories = models.ForeignKey(SubCategory, default=1)
        
        
    class SubCategory(models.Model):
        """Sub Category"""
        category = models.ForeignKey(Category)
        name = models.CharField(max_length=50)
        slug = models.SlugField()

class FootballWebsiteDescription(models.Model):
    """Football service website description."""
    about = models.ForeignKey(Footballwebsite)
    title = models.TextField(blank=True, null=True)
    keywords = models.TextField(blank=True, null=True)
    description = models.TextField(blank=True, null=True)
    relation = models.URLField(blank=True, null=True)
    subject = models.TextField(blank=True, null=True)
    type = models.TextField(blank=True, null=True)
    updated = models.DateTimeField(auto_now=True, auto_now_add=True)
    language = models.TextField(null=True, blank=True)
    contactInformation = models.TextField(null=True, blank=True)
    officialInfo = models.BooleanField(default=False)

and trying to execute the following

class Command(BaseCommand):

    def handle(self, *args, **options):
        websites = FootballWebsiteDescription.objects.filter(title__in=['title1',' title2'])
        for website in websites:

              try:
                  fc = FootballWebsite.objects.filter(id=website.about_id)
                  fc.sub_categories_id = 88
                  fc.save()

and also the following option

fc = FootballWebsite.objects.filter(id=website.about_id).update(sub_categories_id=88)

to my understanding both ways to update the subcategory id from the default 1 to 88 should work. i can update other fields this way at least, and see this as an example referenced anywhere.

i can only find this reference Django: Set foreign key using integer? which indicates i might have run into a bug in my very old Django 1.7 project.

Am i missing something very obvious here or is there a work around? much obliged.

EDIT!! ended up with the following that works for me.

class Command(BaseCommand):

    def handle(self, *args, **options):
        websites = FootballWebsiteDescription.objects.filter(title__in=['title1',' title2'])
        for website in websites:

              try:
                  sub_category_instance = SubCategory.objects.get(id=88)
                  fc = FootballWebsite.objects.filter(id=website.about_id,sub_categories_id=1)[0]
                  fc.sub_categories = sub_category_instance
                  fc.sub_categories.save()
                  fc.save()
              except Exception:
                  pass