Quinn cut an extra $57 million from the $33.7 trillion spending plan.
A large chunk of that was supposed to keep several state facilities open, including Dwight's prison.
But Quinn vetoed that plan Saturday.
Instead, he said the money should be redirected to the Department of Children and Family Services.
Lawmakers cut its budget by $50 million, which Quinn said is too severe.
"A cut of $50 million by the General Assembly was far too much. We are under court consent decrees with the federal court. We have obligations to these children who are depending on us. To cut that dept. by $50 million is I think not the way to go," he said.
Redirecting the money will require approval from lawmakers.
The state budget goes into effect Sunday, July 1.
It also cuts education $200 million and child welfare by $85 million.
A complete breakdown can be found here.