On 21 December 2019, Patterson signed a new Rangers contract, keeping him at the club until 2022.[2] He made his debut on 17 January 2020, in a Scottish Cup match against Stranraer at Ibrox Stadium.[3] He made his league debut against Kilmarnock on 22 August 2020, coming on as a substitute in the 86th minute in a 2–0 win.[4]