.travis.yml in pokemon_tcg_sdk-3.0.0 vs .travis.yml in pokemon_tcg_sdk-4.0.0

@@ -1,15 +1,15 @@
-env:
-  global:
-    - CC_TEST_REPORTER_ID=c14dfc2c8a10a029ac3706d2c2c86f63f663a1445df6213e013a42cbc9a55e74
-language: ruby
-rvm:
-  - 2.3.0
-before_install: gem install bundler -v 1.12.5
-before_script:
-  - 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:
-  - rake test
-after_script:
-  - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
+env:
+  global:
+    - CC_TEST_REPORTER_ID=c14dfc2c8a10a029ac3706d2c2c86f63f663a1445df6213e013a42cbc9a55e74
+language: ruby
+rvm:
+  - 2.7.0
+before_install: gem install bundler -v 2.1.4
+before_script:
+  - 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:
+  - rake test
+after_script:
+  - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT