UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*

                             Aspen Technology, Inc.
            ---------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
            ---------------------------------------------------------
                         (Title of Class of Securities)

                                    045327103
            ---------------------------------------------------------
                                 (CUSIP Number)

                                December 31, 2002
            ---------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check appropriate box to designate the rule pursuant to which this Schedule is
filed:

     |X|  Rule 13d-1(b)

     |_|  Rule 13d-1(c)

     |_|  Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

                                Page 1 of 6 Pages



          ---------
CUSIP NO. 045327103                  13G
          ---------
--------------------------------------------------------------------------------
 1.   NAME OF REPORTING PERSON
      S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

      Massachusetts Capital Resource Company
                  042631251
--------------------------------------------------------------------------------
 2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
                                                                (a) [_]
                                                                (b) [X]
--------------------------------------------------------------------------------
 3.   SEC USE ONLY

--------------------------------------------------------------------------------
 4.   CITIZENSHIP OR PLACE OF ORGANIZATION

      A Massachusetts limited partnership
--------------------------------------------------------------------------------
                     5.   SOLE VOTING POWER
                          175,000
                   -------------------------------------------------------------
                     6.   SHARED VOTING POWER
   NUMBER OF              188,390
    SHARES                (includes 13,390 shares beneficially owned by a
 BENEFICIALLY             partner of the reporting person that the reporting
   OWNED BY               person does not purport to beneficially own)
     EACH          -------------------------------------------------------------
  REPORTING          7.   SOLE DISPOSITIVE POWER
    PERSON                175,000
     WITH          -------------------------------------------------------------
                     8.   SHARED DISPOSITIVE POWER
                          188,390
                          (includes 13,390 shares beneficially owned by a
                          partner of the reporting person that the reporting
                          person does not purport to beneficially own)
--------------------------------------------------------------------------------
 9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      188,390
      (includes 13,390 shares beneficially owned by a partner of the reporting
      person that the reporting person does not purport to beneficially own)
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
      (See Instructions)
                                                                    [_]
--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      0.49%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON (See Instructions)

      PN
--------------------------------------------------------------------------------


                                Page 2 of 6 Pages



                                  SCHEDULE 13G

Item 1(a)  Name of Issuer:
               Aspen Technology, Inc.

     1(b)  Address of Issuer's Principal Executive Offices:
               Ten Canal Park
               Cambridge, MA  02141

Item 2(a)  Name of Person Filing:
               Massachusetts Capital Resource Company

     2(b)  Address of Principal Business Office or, if none, Residence:
               The Berkeley at 420 Boylston St.
               Boston, MA  02116

     2(c)  Citizenship:
               A Massachusetts limited partnership

     2(d)  Title of Class of Securities:
               Common Stock

     2(e)  CUSIP Number:
               045327103

Item 3     If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b):
               The reporting person is an Investment Adviser registered under
               Section 203 of the Investment Advisers Act of 1940.

Item 4     Ownership:

     4(a)  Amount beneficially owned:
               The reporting person beneficially owns 188,390 shares of Common
               Stock of Aspen Technology, Inc. This figure includes 13,390
               shares of Common Stock beneficially owned, as of December 31,
               2002, by one of the reporting person's partners, Metropolitan
               Life Insurance Company (See Item 8 and Exhibit A). The reporting
               person disclaims beneficial ownership of the shares beneficially
               owned by Metropolitan Life Insurance Company.

     4(b)   Percent of Class:
               0.49%

     4(c)   Number of shares as to which such person has:

           (i) Sole power to vote or to direct the vote:
                       175,000


                                Page 3 of 6 Pages



          (ii) Shared power to vote or to direct the vote:
                       188,390

               (includes 13,390 shares beneficially owned by Metropolitan Life
               Insurance Company that the reporting person does not purport to
               beneficially own.)

         (iii) Sole power to dispose or to direct the disposition of:
                       175,000

          (iv) Shared power to dispose or to direct the disposition of:
                       188,390

               (includes 13,390 shares beneficially owned by Metropolitan Life
               Insurance Company that the reporting person does not purport to
               beneficially own.)

Item 5      Ownership of Five Percent or Less of a Class:

               If this statement is being filed to report the fact that as of
               the date hereof the reporting person has ceased to be the
               beneficial owner of more than five percent of the class of
               securities check the following: |X|

Item 6      Ownership of More than Five Percent on Behalf of Another Person:
               Not Applicable.

Item 7      Identification and Classification of the Subsidiary which Acquired
            the Security Being Reported on by the Parent Holding Company:
               Not Applicable.

Item 8      Identification and Classification of Members of the Group:
               This schedule has been filed pursuant to rule 13d-1(b)(1)(ii)(H).
               Exhibit A hereto sets forth the identity and Item 3
               classification of each member of the group.

Item 9      Notice of Dissolution of Group:
               Not Applicable.


                                Page 4 of 6 Pages



Item 10     Certification:

               By signing below the undersigned certifies that, to the best of
               its knowledge and belief, the securities referred to above were
               acquired and are held in the ordinary course of business and were
               not acquired and are not held for the purpose of or with the
               effect of changing or influencing the control of the issuer of
               such securities and were not acquired and are not held in
               connection with or as a participant in any transaction having
               such purpose or effect.

After reasonable inquiry and to the best of its knowledge and belief, the
undersigned certifies that the information set forth in this statement is true,
complete and correct.

                                          MASSACHUSETTS CAPITAL RESOURCE COMPANY

                                          By:   /s/ William J. Torpey, Jr.
                                              ----------------------------------
                                              Name: William J. Torpey, Jr.
                                              Title: President

February 12, 2003



                                Page 5 of 6 Pages



                                    Exhibit A

     Massachusetts Capital Resource Company is a limited partnership. Each of
its partners is an insurance company as defined in Section 3(a)(19) of the
Securities Exchange Act of 1934. Its general partners are:

            John Hancock Life Insurance Company, a direct wholly-owned
               subsidiary of John Hancock Financial Services, Inc.
            New England Life Insurance Company
            Massachusetts Mutual Life Insurance Company
            First Allmerica Financial Life Insurance Company

      Its limited partners are:

            Paul Revere Life Insurance Company
            Berkshire Life Insurance Company
            Boston Mutual Life Insurance Company
            Metropolitan Life Insurance Company


                                Page 6 of 6 Pages