MFS GOVERNMENT SECURITIES FUND, 497J, 2000-07-05

MFS GOVERNMENT SECURITIES FUND
497J, 2000-07-05

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                    MASSACHUSETTS FINANCIAL SERVICES COMPANY
             500 BOYLSTON STREET, BOSTON, MASSACHUSETTS 02116-3741
                                 (617) 954-5000






                                        July 5, 2000





VIA EDGAR

Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, NW
Washington, DC  20549

         Re:   MFS(R) Government Securities Fund (the "Fund") (File Nos. 2-74959
               and 811-3327)

Ladies and Gentlemen:

         Pursuant to Rule 497(j) under the  Securities  Act of 1933, as amended,
please  accept  this  letter  on behalf  of the Fund as  certification  that the
Prospectus  and Statement of Additional  Information  for the Fund do not differ
from those contained in Post-Effective Amendment No. 24 (the "Amendment") to the
Fund's   Registration   Statement  on  Form  N-1A.   The   Amendment  was  filed
electronically on June 28, 2000.

         Please call the  undersigned or Brett Miguel at (617) 954-5873 or (800)
343-2829 with any questions you may have.

                                        Very truly yours,



                                        JAMES F. DESMARAIS
                                        James F. DesMarais
                                        Assistant General Counsel

JFD/bjn