.travis.yml in chord_diagrams-0.0.9 vs .travis.yml in chord_diagrams-0.0.10

@@ -1,7 +1,7 @@
 ---
 sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.6.3
-before_install: gem install bundler -v 2.0.1
+  - 2.7.2
+before_install: gem install bundler -v 2.2