This Bible contradiction is from the Skeptic's Annotated Bible.
Jacob was buried at Machpelah.
Genesis 50:13 View context
For his sons carried him into the land of Canaan, and buried him in the cave of the field of Machpelah, which Abraham bought with the field for a possession of a buryingplace of Ephron the Hittite, before Mamre.
Jacob was buried at Shechem.
Acts 7:15-16 View context
So Jacob went down into Egypt, and died, he, and our fathers,
And were carried over into Sychem, and laid in the sepulchre that Abraham bought for a sum of money of the sons of Emmor [the father] of Sychem.