.travis.yml in oembed_proxy-0.1.4 vs .travis.yml in oembed_proxy-0.2.0

@@ -1,10 +1,9 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.5
-  - 2.4
-  - 2.3
+  - 2.7
+  - 2.6
 before_install: gem install bundler
 script:
   - 'bin/rspec'
   - 'bin/rubocop'