chore(package.json): pin to a single version

[evenchange4]

Issue:

What I did

How to test

[michaelhsu-bot]

	Warnings
⚠️	Changes were made to package.json, but not to licenses.csv - Perhaps you need to run $ yarn run license?

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[evenchange4]

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[codecov]

Codecov Report

Merging #497 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #497   +/-   ##
=======================================
  Coverage   86.48%   86.48%           
=======================================
  Files         282      282           
  Lines        2413     2413           
  Branches      136      136           
=======================================
  Hits         2087     2087           
  Misses        279      279           
  Partials       47       47

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