LIMITED POWER OF ATTORNEY
FOR SECTION 16 REPORTING OBLIGATIONS

Know all by these present that the undersigned hereby
makes, constitutes and appoints each of Frederic G. Hammond
and Susan E. Cutright, signing singly
and each acting individually, as the undersigned's true and
lawful attorney-in-fact with full power and authority as
hereinafter described to:

(1)    execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of Aspen Technology, Inc.
(the "Company"), Forms ID, 3, 4 and 5 (including any amendments
thereto) in accordance with Section 16(a) of the Securities Exchange
Act of 1934 and the rules thereunder (the "Exchange Act");

(2)     do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to prepare, complete
and execute any such Form ID, 3, 4 or 5; prepare, complete and execute
any amendment or amendments thereto; and timely deliver and file such
form with the United States Securities and Exchange Commission and any
stock exchange or similar authority;

(3)     seek or obtain, as the undersigned's representative and on the
undersigned's behalf, information regarding transactions in the Company's
securities from any third party, including brokers, employee benefit plan
administrators and trustees, and the undersigned hereby authorizes any
such person to release any such information to such attorney-in-fact and
approves and ratifies any such release of information; and

(4)     take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact,
or such attorney-in-fact's substitute or substitutes, shall lawfully do or
cause to be done by virtue of this power of attorney and the rights and powers
herein granted.  The undersigned acknowledges  that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming nor relieving, nor is the Company assuming or
relieving, any of the undersigned's responsibilities to comply with Section
16 of the Exchange Act.

The undersigned acknowledges that neither the Company nor the foregoing
attorneys-in-fact assume (i) any liability for the undersigned's responsibility
to comply with the requirements of the Exchange Act, (ii) any liability of the
undersigned for any failure to comply with such requirements, or (iii) any
obligation or liability of the undersigned for profit disgorgement under
Section 16(b) of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this
Power of Attorney to be executed as of April 15, 2021.


/s/Jill Smith
Signature