Exhibit 99.d.5.(i)

AMENDMENT TO SUB-ADVISORY AGREEMENT

THIS AMENDMENT (“Amendment”) to the Sub-Advisory Agreement (“Agreement”) dated as of October 25, 2024 by and between Mercer Investments LLC, a Delaware limited liability company (the “Advisor”), and Baillie Gifford Overseas Limited, a company incorporated in Scotland and having its registered office at Calton Square, 1 Greenside Row, Edinburgh EH1 3AN (the “Sub-Advisor”), is made effective as of the 1st day of July, 2026.

RECITALS

WHEREAS, the Advisor has been retained to act as investment adviser pursuant to an Investment Management Agreement, dated July 1, 2014 and as amended from time to time (the “Advisory Agreement”), with Mercer Funds (the “Trust”), a Delaware statutory trust registered with the U.S. Securities and Exchange Commission as an open-end management investment company under the Investment Company Act of 1940, as amended (the “1940 Act”), which consists of several separate series of shares, each having its own investment objectives and policies, and which is authorized to create additional series in the future;

WHEREAS, the Advisory Agreement permits the Advisor, subject to the supervision and direction of the Trust’s Board of Trustees, to delegate certain of its duties under the Advisory Agreement to other investment advisers, subject to the requirements of the 1940 Act;

WHEREAS, the Sub-Advisor currently manages an allocated portion of the assets of one or more of the Trust’s series (each a “Fund” and collectively, the “Funds”) under the Agreement;

WHEREAS, the Agreement provides that the parties may mutually agree to supplement or amend any provision of the Agreement;

WHEREAS, subject to Clause 12 of the Agreement, the Advisor and the Sub-Advisor desire to amend the Agreement as set forth in this Amendment; and

WHEREAS, the Advisor and the Sub-Advisor intend to amend Exhibit A of the Agreement effective as of the date hereof.

AGREEMENT

NOW THEREFORE, in consideration of the promises and mutual agreements set forth herein, the parties hereby agree to amend the Agreement, as follows:

(Signature Page Follows)

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IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the day and year first written above.