The independent review board also said Pistorius should be "subjected to psychotherapy'' as part of his parole conditions, even if it is decided that he can be released early, the corrections department said in a statement.
The corrections department did not say when Pistorius’s case would be looked at again.
He was eligible to be moved to house arrest after serving 10 months and initially cleared to leave Kgosi Mampuru II prison in Pretoria on August 21.
However, South Africa’s justice minister intervened, suspended the decision on a legal technicality and ordered a review.
At next month’s Supreme Court appeal, Pistorius faces the possibility of a 15-year jail sentence if a panel of five judges agrees with prosecutors that he should have been found guilty of murder for shooting Steenkamp through a toilet door in his home.
Oscar Pistorius' lawyer says a decision on the Olympic athlete’s early release from prison has been referred back to the parole board.
Lawyer Brian Webber said he has been informed that the parole review board that met on Monday cancelled an earlier decision to release Pistorius and asked officials to reconsider his case.
It could mean Pistorius remains in prison until after November 3, when prosecutors still seeking a murder conviction against the double-amputee runner appeal to South Africa’s Supreme Court.
Pistorius was acquitted of murder and instead found guilty of a lesser charge of culpable homicide for shooting Reeva Steenkamp in 2013.
He has served nearly a year of his five-year prison sentence.