 Pröpper scored his first goals for his country on his 6th cap in a 2018 World Cup qualifier on 3 September 2017, netting twice in the 3–1 home victory over Bulgaria.In his next cap he scored again in a 3–1 victory, which was also in a 2018 World Cup qualifier, this time away to Belarus on 7 October 2017.Pröpper was part of the Dutch 2019 Nations League squad that finished as the runners up.