Amendment No. 1 to the Sub-Investment Management Agreement Among John Hancock
  Variable Series Trust I, John Hancock Advisers, Inc. and John Hancock Life
                               Insurance Company


     Reference is made to that certain Sub-Investment Management Agreement dated
as of May 1, 1995 among John Hancock Variable Series Trust I, John Hancock
Advisers, Inc. and John Hancock Life Insurance Company (the "Agreement").

Recitals
--------

     A.   The current name of the "Bond Portfolio" is the "Active Bond Fund."

     B.   On February 1, 2000, John Hancock Life Insurance Company ("John
          Hancock") converted to a stock life insurance company and changed its
          name from "John Hancock Mutual Life Insurance Company."

     C.   On July 14, 2000, the Board of Trustees of the John Hancock Variable
          Series Trust I ("Series"), including a majority of those Trustees of
          the Series who are not interested persons of any party to the
          Agreement, duly approved an increase in fees payable under the
          Agreement by John Hancock to John Hancock Advisers, Inc., subject to
          approval by shareholders of the Active Bond Fund.

     D.   On September 28, 2000, the shareholders of the Active Bond Fund duly
          approved such increase in fees payable under the Agreement.

Amendment
---------

In accordance with section 11 of the Agreement, the parties hereto agree to
amend the Agreement as follows:

1.   The phrase "Bond Portfolio" is deleted wherever shown and the phrase
     "Active Bond Fund" is inserted in its place.

2.   The phrases "John Hancock Mutual Life Insurance Company" and "JHMLICO" are
     deleted wherever shown and the phrases "John Hancock Life Insurance
     Company" and "JHLICO" are respectively inserted in their place.

3.   The first paragraph of section 4 of the Agreement, entitled "SUB-ADVISORY
     FEES" is hereby amended to read as follows:

          "For all of the services rendered as herein provided, JHLICO shall pay
          to Sub-Manager a fee (for payment of which the Series shall have no
          obligation or liability) based on the Current Net Assets of the
          Portfolio, as set forth in Schedule I attached hereto and made a part
          hereof."

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4. Schedule I is attached to the Agreement to read as follows:

                                   SCHEDULE I

                                      FEES
                                      ----

--------------------------------------------------------------------------------
Current Net Assets Under Management                Sub-Advisory Fee
-----------------------------------                ----------------

--------------------------------------------------------------------------------
On the first $100 million                25.0 basis points (0.25%) per annum
--------------------------------------------------------------------------------
On the next $150 million                 20.0 basis points (0.20%) per annum
--------------------------------------------------------------------------------
On the next $250 million                 16.0 basis points (0.16%) per annum
--------------------------------------------------------------------------------
On the next $500 million                 12.5 basis points (0.125%) per annum
--------------------------------------------------------------------------------
On amounts over $1 billion               10.0 basis points (0.10%) per annum
--------------------------------------------------------------------------------

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
and to take effect as of November 1, 2000.


ATTEST:                                 JOHN HANCOCK VARIABLE SERIES
                                        TRUST I

/s/ Ronald J. Bocage                    By: /s/ Michele G. Van Leer
                                        Title: Chairman


ATTEST:                                 JOHN HANCOCK LIFE INSURANCE COMPANY


/s/ Ronald J. Bocage                    By: /s/ Robert R. Reitano
                                        Title: Senior Vice President and Chief
                                               Investment Strategist

ATTEST:                                 JOHN HANCOCK ADVISERS, INC.


/s/ Theresa Appruzzesi                  By:/s/ James V. Bowhers
                                        Title:  Executive Vice President


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