.travis.yml in henkei-1.23.1 vs .travis.yml in henkei-1.23.2

@@ -5,14 +5,15 @@
     - INCLUDE_RAILS=false
     - INCLUDE_RAILS=true
 
 language: ruby
 rvm:
-  - 2.3
   - 2.4
   - 2.5
   - 2.6
+  - 2.7
+  - 3.0
 
 before_install:
   - gem update bundler
 
 install:
@@ -23,10 +24,10 @@
   - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
   - chmod +x ./cc-test-reporter
   - ./cc-test-reporter before-build
 
 script:
-  - rubocop
+  - bundle exec rubocop
   - bundle exec rspec
 
 after_script:
   - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT