St. Augustine is also writing very near the limit of Late Antiquity, in the early 5th century.
QuoteIn the history of Europe, the Middle Ages or medieval period (also spelled mediæval or mediaeval) lasted approximately from the late 5th to the late 15th centuries, aligning with the post-classical period of global history. It began with the fall of the Western Roman Empire in 476 AD and ended with the fall of Constantinople in 1453 AD before transitioning into the Renaissance and then the Age of Discovery.
And in the medieval period Epicurus was still calumniated, but as a glutton rather than a philosopher. We would need a more complete understanding of medieval literature to find the traces of atomism and hedonism, which I certainly lack.