Can. 1202

The obligation arising from a promissory oath ceases:

1/ if it is remitted by the person for whose benefit the oath was made;

2/ if the matter sworn to is substantially changed or if, after the circumstances have changed, it becomes either evil or entirely indif-ferent or, finally, impedes a greater good;

3/ if the purpose or a condition under which the oath may have been taken ceases;

4/ by dispensation or commutation, according to the norm of can. 1203.