.travis.yml in mathml2asciimath-0.0.5 vs .travis.yml in mathml2asciimath-0.0.6

@@ -1,16 +1,18 @@
-dist: trusty
+# Auto-generated !!! Do not edit it manually
+# use ci-master https://github.com/metanorma/metanorma-build-scripts
 language: ruby
-sudo: false
-
-before_install:
-  - gem install bundler -v 1.16.1
-
+cache: bundler
+os:
+- linux
+- osx
 rvm:
-  - 2.5
-  - 2.4
-  - 2.3
-  - ruby-head
-
+- 2.6
+- 2.5
+- 2.4
+- ruby-head
+before_install: 
+- gem install bundler -v "~> 2"
+- bundle update
 matrix:
   allow_failures:
     - rvm: ruby-head