Edgar Gonzalez, originally scheduled to start Saturday, will start Friday, and the rest of the rotation will be bumped up a day with Dallas Keuchel going Saturday and Jordan Lyles on Sunday.
"We're going to make sure the finger's healed and there's no more problems the rest of the year," Astros interim manager Tony DeFrancesco said. "He'll have a couple of more starts left."
The Astros are using a six-man rotation, so skipping Norris one start won't put the pitching staff under any strain.
"We have plenty of pitching here," DeFrancesco said. "It kind of worked out nice with the day off [Monday] and everybody is still going to get rest. It's the end of the year and we're making sure nobody gets overworked or exceeds their limit of innings."
Norris will have to wait to try to snap his personal 11-game losing streak as he searches for his first win since May 21. He's 0-11 with a 6.04 ERA in his past 17 starts.