.travis.yml in attr_keyring-0.5.2 vs .travis.yml in attr_keyring-0.5.3

@@ -1,17 +1,25 @@
+---
+
 language: ruby
 cache: bundler
 sudo: false
 notifications:
   email: false
 rvm:
-- 2.5.3
+  - 2.6.5
+  - 2.5.7
+services:
+  - postgresql
+gemfiles:
+  - gemfiles/6_0.gemfile
+  - gemfiles/5_2.gemfile
 before_script:
-- createdb test
-- 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"
+  - createdb test
+  - 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"
 after_script:
-- "./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT"
+  - "./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT"
 env:
   global:
     secure: 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