Which version of Stephens’s Acts 7 speech is correct?

Stephen’s speech, made while he was supposedly “full of the Holy Spirit” (Acts 7:55), shows a number of distinct differences from that found in Christian versions of the Bible which follow the Jewish Masoretic text (Acts 7:14-16). If these differences were said while under the influence of the “Holy Spirit” should this not mean that Stephen’s version is correct and should be reflected in the appropriate texts found in Christian Bibles?