Indiana Code Title 27. Insurance § 27-11-6-5

Sec. 5. Any changes, additions, or amendments to the laws of the society duly made or enacted subsequent to the issuance of the certificate shall bind the owner and the beneficiaries and shall govern and control the benefit contract in all respects as though the changes, additions, or amendments had been made before and were in force at the time of the application for insurance, except that no change, addition, or amendment shall destroy or diminish benefits that the society contracted to give the owner as of the date of issuance.