Update changelog with last-minute fix

[brettcannon]

Part of #2199

• Pull request represents a single change (i.e. not fixing multiple disparate/unrelated things in a single PR)
• Title summarizes what is changing
• Has a news entry file (remember to thank yourself!)
• Has unit tests & system/integration tests
• Any new/changed dependencies in package.json are pinned (e.g. "1.2.3", not "^1.2.3" for the specified version)
• package-lock.json has been regenerated by running npm install (if dependencies have changed)