MyBinder build fails

[psychemedia]

Trying to view the repo view MyBinder fails in the build:

Step 4/7 : RUN yarn install --frozen-lockfile --ignore-scripts && yarn cache clean
 ---> Running in 1cc1c0e1a813
yarn install v1.3.2
[1/4] Resolving packages...
error Your lockfile needs to be updated, but yarn was run with `--frozen-lockfile`.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
Removing intermediate container 1cc1c0e1a813
The command '/bin/sh -c yarn install --frozen-lockfile --ignore-scripts && yarn cache clean' returned a non-zero code: 1

[playermanny2]

This should be fixed by #67