Numbers 33:36-38 New Revised Standard Version Catholic Edition (NRSVCE)
36 They set out from Ezion-geber and camped in the wilderness of Zin (that is, Kadesh). 37 They set out from Kadesh and camped at Mount Hor, on the edge of the land of Edom.
38 Aaron the priest went up Mount Hor at the command of the Lord and died there in the fortieth year after the Israelites had come out of the land of Egypt, on the first day of the fifth month.
Numbers 33:36-38 New International Version (NIV)
36 They left Ezion Geber and camped at Kadesh, in the Desert of Zin.
37 They left Kadesh and camped at Mount Hor, on the border of Edom. 38 At the Lord’s command Aaron the priest went up Mount Hor, where he died on the first day of the fifth month of the fortieth year after the Israelites came out of Egypt.