Genesis 43:2

And it came to pass, when they had eaten up the corn which they had brought out of Egypt, their father said unto them, Go again, buy us a little food. Since the land of Canaan had no relief in the next year, but the famine rather grew worse, the store of grain was soon consumed, and the necessity was thereby suggested of their making a second journey to Egypt for the purpose of purchasing food, something to eat, for their households.