Exhibit 23(d)15 High Yield Bond AMENDMENT TO SUBINVESTMENT MANAGEMENT AGREEMENT This amendment ("Amendment") is made as of March 12, 2003 by and among John Hancock Variable Series Trust I (the "Series"), Wellington Management Company, LLP ("Adviser"),...

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                                                                         Exhibit
                                                                         23(d)15
                                                                 High Yield Bond

                 AMENDMENT TO SUBINVESTMENT MANAGEMENT AGREEMENT

     This amendment ("Amendment") is made as of March 12, 2003 by and among Xxxx
Xxxxxxx Variable Series Trust I (the "Series"), Wellington Management Company,
LLP ("Adviser"), and Xxxx Xxxxxxx Life Insurance Company, a Massachusetts
corporation formerly known as "Xxxx Xxxxxxx Mutual Life Insurance Company"
("JHLICO").

                                    RECITALS

          A. Series, Adviser and JHLICO are parties to that certain
     Sub-Investment Management Agreement among Xxxx Xxxxxxx Variable Series
     Trust I, Wellington Management Company, LLP and Xxxx Xxxxxxx Life Insurance
     Company dated April 20, 1998, as amended July 2, 2001, (the "Agreement")
     wherein Adviser is appointed as sub-investment manager of the High Yield
     Bond Fund ("High Yield Portfolio").

          B. The parties hereto desire to amend the terms of the Agreement in
     accordance with Rule 12d3-1 under the Investment Company Act of 1940
     pursuant to the terms of this Amendment.

                                    AMENDMENT

     Now, therefore, for good and valuable consideration, receipt whereof is
hereby acknowledged, the parties hereby agree as follows:

          1. Recitals A and B are incorporated herein and made a part hereof.

          2. Wellington Management Company, LLP will not consult with any other
     sub-manager to the High Yield Portfolio or to any other Portfolio of the
     Series concerning transactions of the High Yield Portfolio in securities or
     other assets, except as such consultations may be reasonably necessary in
     order to ensure compliance with paragraphs (a) and (b) of Rule 12d3-1 under
     the 1940 Act.

          3. This Amendment may be executed in two or more counterparts which
     together shall constitute one instrument.

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed as of the day first set forth above.



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XXXX XXXXXXX VARIABLE
SERIES TRUST I


By: /s/ Xxxxxxx X. Xxx Xxxx
    ------------------------------
    Name: Xxxxxxx X. Xxx Xxxx
    Title: President and CEO


XXXX XXXXXXX LIFE
INSURANCE COMPANY


By: /s/ Xxxxxx X. Xxxxxxx
    ------------------------------
   Name: Xxxxxx X. Xxxxxxx
   Title: Senior Vice President and Chief Investment Strategist


Wellington Management Company, LLP


By: /s/ Xxxxxxxx X. Xxxxxx
    ------------------------------
    Name: Xxxxxxxx X. Xxxxxx
    Title: Senior Vice President



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