HARRISBURG — Gov. Tom Corbett plans to ask Attorney General Kathleen Kane’s office to reverse its rejection of a contract with a British firm to manage the $3.5 billion Pennsylvania Lottery, a top lawmaker said Tuesday.

Senate President Pro Tempore Joe Scarnati said administration officials told him Monday they are making changes in the contract with London-based Camelot Global Services that Kane rejected last month over concerns that parts of it contravene the state constitution or violate state law.

The changes are in preparation to resubmit it for her approval, Scarnati said.

A spokesman for the Department of Revenue, which oversees the lottery, declined comment, except to say certain changes to the contract would not trigger the need for a new round of bidding. The spokesman, Elizabeth Brassell, said the Corbett administration would say more later this week, once it announces its next steps. The administration has a Saturday deadline to appeal Kane’s decision.

However, the head of the union that represents lottery employees, David Fillman, said making changes to the contract is “a very dangerous path” because of state laws meant to ensure a fair contracting process.

The changes described by Scarnati would limit the scope of gambling that would be allowed under the contract. Senate Republicans, including Scarnati, had asked Corbett’s administration in January to make it clear the Pennsylvania Lottery cannot compete with casinos through online gambling.

“They are working on language similar to ours in the contract that would address our concerns,” Scarnati, R-Jefferson, said. He said he believes those changes will be part of a contract that the administration will resubmit to Kane.

A draft of legislation written by Sen. Robert Tomlinson, R-Bucks, would legalize keno and the use of a computer mouse to scratch off instant tickets, but it otherwise would prohibit the lottery or its private manager from offering Internet-based or monitor-based interactive games or casino-style games, including video poker, video roulette and video blackjack. The bill has not been introduced yet.

Kane had said she would not approve Camelot’s 20- to 30-year contract because state law does not allow the governor to privatize the management of the lottery nor does it allow the expansion of gambling the contract would permit. Her office also concluded the “indirect expenses” Camelot can claim under the contract are an unconstitutional waiver of the state’s “sovereign immunity” protection against paying certain damages or claims.

The attorney general’s office reviews state contracts for form and legality.

Corbett has said he believes Camelot, the United Kingdom’s official lottery operator, can produce higher and more stable lottery profits for the state.