The report did not suggest the spacecraft was in any danger, and described the adjustment as minor and routine.
The capsule is reported orbiting about 343 kilometers above Earth, making one circle of the planet every 90 minutes.
Reports said the mission is expected to last as long as five days, until 15 October.
The mission is taking place two years after China first sent a human into space, joining the former Soviet Union and the United States as the only countries to do so.
See also: China: New Manned Mission Marks Milestone For Space Program