It use to be the case for our previous toolbar version but now you have to move the the last version of the toolbar v3 that was a complete revamp of the toolbar to make it more reliable and with no dependencies like jquery 
Your case is a bit different since you’re on Gatsby so basically we need to merge this PR https://github.com/birkir/gatsby-source-prismic-graphql/pull/63 and you’ll just have to update your gatsby plugin 
I’ll ask some people on the team to review it quickly so we can finally get this over with.
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