EXECUTION

SALES AGREEMENT AMENDMENT

Cowen and Company, LLC

599 Lexington Avenue

BMO Capital Markets Corp.

CIBC World Markets Corp.

AltaCorp Capital Inc.

Suite 3530, 66 Wellington Street West

Toronto, Ontario M5K 1A1

Ladies and Gentlemen:

to the sales agreement (the "Original Agreement") among Aurora Cannabis Inc. (the "Company"),

Cowen and Company, LLC ("Cowen") and BMO Capital Markets Corp. ("BMOCM" and,

together with Cowen, the "Executing Agents"), dated as of May 14, 2019. Capitalized terms used herein

but not defined herein shall have the meaning given to those terms in the Original Agreement. Each of the Company, the Executing

Agents and the Additional Agents (as defined below) hereby agrees as follows:

in Aggregate Offering Price. Section 1 of the Original Agreement is hereby amended to replace the reference to an aggregate

offering price of up to "US$400,000,000" with an aggregate offering price of up to "US$650,000,000".

Agents. Each of CIBC World Markets Corp. ("CIBC") and AltaCorp Capital Inc. ("AltaCorp"

and, together with Cowen, BMOCM and CIBC, the "Agents") is hereby designated as an "Additional

Agent" within the meaning of Section 14 of the Original Agreement, and each such Additional Agent shall be deemed

an Agent for all purposes of the Original Agreement, with all the rights and obligations of an Agent set forth therein and having

the benefit of the representations and covenants of the Company set forth therein as if made on the date hereof; provided, that,

notwithstanding anything to the contrary in the Original Agreement, the Additional Agents shall not be entitled to, and shall not,

effect any sales of Placement Shares as part of any Placement, and the Company shall not deliver any Placement Notice to any Additional

Agent in respect thereof. For the avoidance of doubt, each Placement Notice shall be delivered by the Company to one of the Executing

Agents, and each Placement of Placement Shares shall be effected by one of the Executing Agents in the manner contemplated in Section

3 of the Original Agreement.

Notwithstanding anything to the contrary in the Original Agreement, for each Placement of Placement Shares by either of the Executing

Agents, the Agents shall receive the compensation set out in Schedule 3, as revised below. Schedule 3 of the Original Agreement

is hereby restated in its entirety, as follows:

of compensation to be paid by the Company to the Agents in connection with each Placement of Placement Shares shall be equal to

2.0% of the gross proceeds from such Placement, with such compensation to be allocated among the Agents as agreed by the Agents

Clause (i) of the second sentence of Section

5(a) of the Original Agreement is amended to replace "such Agent's commission" with "the Agents'

All notices or other communications required or permitted to be given by any party to any other party pursuant to the terms of

this Agreement, if sent to CIBC shall be delivered to 300 Madison Avenue, New York, NY 10017, fax no. (212) 667-8361; and if sent

to AltaCorp, shall be delivered to Suite 3530, 66 Wellington Street West, Toronto, Ontario M5K 1A1 fax no. (647) 776-8248, Attention:

of Original Agreement. The Original Agreement, as amended and supplemented by this amendment (the "Amendment"),

is in all respects ratified and confirmed, and this Amendment shall be deemed part of the Original Agreement.

Law. This Amendment shall be governed by, and construed in accordance with, the internal laws of the State of New York without

regard to the principles of conflicts of laws.

This Amendment may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together

shall constitute one and the same instrument. Delivery of an executed Amendment by one party to the others may be made by facsimile

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correctly sets forth the understanding between the Company and the Agents, please so indicate in the space provided below for that

purpose, whereupon this letter shall constitute a binding agreement between the Company and the Agents.