.circleci/config.yml in physical-0.4.4 vs .circleci/config.yml in physical-0.4.5

@@ -5,17 +5,12 @@
 version: 2
 jobs:
   build:
     docker:
       # specify the version you desire here
-       - image: circleci/ruby:2.4.5
+       - image: cimg/ruby:3.0.4
 
-      # Specify service dependencies here if necessary
-      # CircleCI maintains a library of pre-built images
-      # documented at https://circleci.com/docs/2.0/circleci-images/
-      # - image: circleci/postgres:9.4
-
     working_directory: ~/repo
 
     steps:
       - checkout
 
@@ -34,9 +29,13 @@
 
       - save_cache:
           paths:
             - ./vendor/bundle
           key: v1-dependencies-{{ checksum "Gemfile.lock" }}
+
+      - run:
+          name: run Rubocop
+          command: bundle exec rubocop
 
       # run tests!
       - run:
           name: run tests
           command: |