Exhibit10.155 ERIE INDEMNITY COMPANY EMPLOYEE BENEFITS ADMINISTRATION COMMITTEE Third Amendment of Erie Insurance Group Employee Savings Plan (As Amended and Restated Effective January 1, 2010)

Section 1.8 of the Plan is hereby amended in its entirety and shall now read as follows:

‘Compensation’ for any period means the rate of base salary or the wages paid by an Employer to an Employee during the period. For this purpose, the “rate of base salary or the wages paid” shall exclude Form W-2 income in the form of overtime compensation, bonuses, commissions, deferred compensation plan payments or severance pay under any severance benefit plan, but shall include Form W-2 income paid as a lump sum in lieu of merit increase and compensation excluded from Form W-2 income because of salary reduction agreements in connection with plans described in Sections 125, 132(f)(4) or 401(k) of the Code or resulting from deferred compensation contracts for the Plan Year in question. For Plan Years beginning on and after January 1, 2015, the “rate of base salary or the wages paid” shall include an amount, determined under the Company’s vacation conversion program, that is paid to the Employee as Form W-2 income and/or is excluded from Form W-2 income on account of such Employee’s salary reduction agreement applicable to such amount. Compensation shall exclude any differential wage payments made on behalf of a Covered Employee who is on military leave. Effective for each Plan Year beginning on and after December 31, 1989, in no event shall the amount of Compensation taken into account under the Plan exceed the adjusted annual limitation permitted under Section 401(a)(17) of the Code for such Plan Year. Such adjusted annual limitation shall be, for each Plan Year beginning on and after December 31, 2001, $200,000 (as adjusted for cost-of-living increases in accordance with Section 401(a)(17)

Section 3.1(b) of the Plan is hereby amended in its entirety and shall now read as follows:

Effective for each Plan Year beginning on and after January 1, 2015, a Covered Employee may make an annual, one-time election to convert a portion of the vacation accrued on his behalf into cash and/or an Elective Deferral. Such Covered Employee election shall be given effect provided that such election is made in a manner satisfactory to the Administrator during the election period described in subparagraph (i) below, the Covered Employee satisfies the eligibility requirements of subparagraph (ii) below, and, provided further, that the total amount of vacation accrual converted into cash and/or an Elective Deferral for any given Plan Year shall not exceed the maximum vacation conversion amount described in subparagraph (iii) below. Any payment in cash or Elective Deferral to the Plan pursuant to an election under this Section 3.1(b) shall be made at the time or times provided in subparagraph (iv) below.

A Covered Employee must make the election under this Section 3.1(b) during an election period established by the Company. Such election period shall begin and end in the calendar year that precedes the beginning of the Plan Year for which the election is being made. Such election shall state the number of accrued vacation hours the Covered Employee wishes to convert during such Plan Year, subject to the limitations of subparagraph (iii) below, and his choice of conversion medium (cash, Elective Deferral, or both as delineated on the basis of hours or other reasonable criteria established by the Company). A Covered Employee may not change or discontinue his election after the election period for such Plan Year ends. Any election under this Section 3.1(b) shall be made in such manner provided by the Company and communicated to Covered Employees.

Notwithstanding subparagraph (i) above, a Covered Employee’s election to convert an amount of vacation accrual into cash and/or an Elective Deferral shall be given effect only if the Covered Employee has used a minimum allotment of his accrued vacation during the Plan Year for which the election has been made, as determined under the Company’s vacation conversion program as of the Vacation Conversion Date applicable to such Covered Employee, as determined under subparagraph (iv) below. The Company, in its sole discretion, shall determine whether a Covered Employee has used a minimum allotment of accrued vacation as of any given time.

Any Covered Employee who chooses to convert accrued vacation under this Section 3.1(b) shall designate, in his election under subparagraph (i) above, to convert an amount not less than one hour of accrued vacation and not more than such amount permitted under the Company’s vacation conversion program.

The conversion of accrued vacation into a cash payment and/or an Elective Deferral on behalf of a Covered Employee who satisfies the terms of this Section 3.1(b) shall occur as of the Vacation Conversion Date applicable to the Covered Employee. For purposes hereof, the “Vacation Conversion Date” applicable to a Covered Employee means the June 1 or October 1 of the Plan Year for which the election has been made and which next follows the date the Covered Employee has used a minimum allotment of accrued vacation as described in subparagraph (ii). For any given Plan Year, there shall not exceed one Vacation Conversion Date applicable to a given Covered Employee. The amount of accrued vacation that is actually converted into a cash payment and/or an Elective Deferral on behalf of a Covered Employee as of a Vacation Conversion Date shall not exceed the amount of accrued vacation credited to such Covered Employee as of the Vacation Conversion Date applicable to such Covered Employee. To the extent that a Covered Employee who makes an election under this Section 3.1(b) terminates employment with an Employer before the Vacation Conversion Date applicable to the Covered Employee or fails to use a minimum allotment of accrued vacation as of the October 1 of the Plan Year for which the election has been made the Covered Employee’s entire election under this Section 3.1(b) shall be nullified and any opportunity to convert accrued vacation for such Plan Year shall be forfeited.

Section 3.1 of the Plan is hereby amended by adding the following to the end thereof:

Elective Deferrals constitute Employer contributions under the Plan and are intended to qualify as elective contributions under Sections 401(k) and 402A of the Code. Elective Deferrals may be made only with respect to an amount which the Participant could otherwise elect to receive in cash and which is not currently available to the Participant as of the date an election specified in this Section 3.1 is made. In the event a Participant has no Compensation for any payroll period, no Elective Deferral may be made for such period.”

Section 6.2(b) of the Plan is hereby amended by deleting “180 days” therefrom and inserting “90 days” in lieu thereof.

Section 11.3 of the Plan is hereby amended in its entirety and shall now read as follows: