fix: oclif v1.11.7

## [1.11.7](oclif/oclif@v1.11.6...v1.11.7) (2018-09-14)

### Bug Fixes

* greenkeeper-lockfile no longer necessary ([8f55fd0](oclif/oclif@8f55fd0))

Author: oclif-bot

.circleci/config.yml

@@ -13,7 +13,7 @@ jobs:
             - v1-npm-{{checksum ".circleci/config.yml"}}
       - run:
           name: Install dependencies
-          command: .circleci/greenkeeper
+          command: yarn
       - run: ./bin/run --help
       - run:
           name: Testing