Fix outdated Celerity

Summary:
Ref D25134
Ref T15276

Test Plan: - make unit test happy

Reviewers: O1 Blessed Committers, avivey

Reviewed By: O1 Blessed Committers, avivey

Subscribers: speck, tobiaswiese, Matthew, Cigaryno

Maniphest Tasks: T15276

Differential Revision: https://we.phorge.it/D25136