That may be the common notion today, but it goes against the New Testament.

There is clearly no New Testament evidence for a change of the Sabbath from Saturday, the seventh day of the week, to Sunday, the first day of the week. The change came after the days of Jesus and the apostles, so we must turn to history to see when and how this change came about.

The earliest authentic instance of Sunday observance by Christians occurred in Italy, in the middle of the 2nd century after Christ. For a long time after that, many Christians observed both days, while still others kept the seventh-day Sabbath only.

https://www.bibleinfo.com/en/questions/who-changed-the-sabbath