How do I change my beneficiary on MassMutual?

How do I change my beneficiary on MassMutual?

Call 1-800-743-5274 with questions. MassMutual Thrift Plan – Log on to RetireSMARTSM. Under My Account, click Personal Info, then Change Beneficiary and follow the system prompts. Or you can complete the Beneficiary Designation Form on RetireSmart (under My Account, Forms).

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