How to change fragment inside getItem of FragmentStatePagerAdapter

I have this code, where I want the first fragment of my FragmentStatePageAdapter(inside a viewpager), to change, depending on some boolean values.

inner class MainFragmentAdapter(fragmentManager: FragmentManager) :
        FragmentStatePagerAdapter(fragmentManager) {

    override fun getCount(): Int {
        return MainView.Fragments.values().size
    }

    override fun getItem(position: Int): Fragment? {
        return when (position) {
            0 -> {
                if (booleanOne && !booleanTwo) {
                    FragmentOne.newInstance()
                } else if (booleanTwo && !booleanOne) {
                    FragmentTwo.newInstance()
                } else {
                    FragmentThree.newInstance()
                }
            }
            else -> null
        }
    }
}

As of now, the only solution I found, was when I personally knew one of the boolean values changed, I just did something similar to this :

   _fragmentAdapter = MainFragmentAdapter(getLifecycleFragmentManager())

   fragmentViewPager.adapter = _fragmentAdapter

So I just set the adapter once again, but it seems rather off to me to do this. Can't I force it to just calculate getItem once again?

Inside your class make these changes, notifyDataSetChanged() and then override the getItemPosition() which will be called on every notify and then just return the respective constant, POSITION_NONE if you want to see new changes or else POSITION_UNCHANGED

    inner class MainFragmentAdapter(fragmentManager: FragmentManager) :
        FragmentStatePagerAdapter(fragmentManager) {

    override fun getCount(): Int {
        return MainView.Fragments.values().size
    }

    override fun getItem(position: Int): Fragment? {
        return when (position) {
            0 -> {
                if (booleanOne && !booleanTwo) {
                    FragmentOne.newInstance()
                } else if (booleanTwo && !booleanOne) {
                    FragmentTwo.newInstance()
                } else {
                    FragmentThree.newInstance()
                }
               notifyDataSetChanged();
            }
            else -> null
        }
    }

    override fun getItemPosition(@NonNull `object`: Any): Int {
            // this method will be called for every fragment in the ViewPager
            return if (`object` is FragmentOne) {
                POSITION_UNCHANGED // don't force a reload
            } else {
                // POSITION_NONE means something like: this fragment is no longer valid
                // triggering the ViewPager to re-build the instance of this fragment.
                POSITION_NONE
            }
        }

}