To invalidate your old data and restart existing loader you can use [restartLoader()](<https://developer.android.com/reference/android/app/LoaderManager.html#restartLoader(int,%20android.os.Bundle,%20android.app.LoaderManager.LoaderCallbacks%3CD%3E)>) method:

private void reload() {
    getLoaderManager().reastartLoader(LOADER_ID, Bundle.EMPTY, this);
}