.travis.yml in mercenary-0.3.6 vs .travis.yml in mercenary-0.4.0

@@ -1,13 +1,13 @@
 language: ruby
-rvm:
-  - 1.9.3
-  - 2.0.0
-  - 2.1
-sudo: false
 cache: bundler
+rvm:
+  - 2.4
+  - 2.6
+
 before_script: bundle update
-script: "./script/cibuild"
+script: script/cibuild
+
 notifications:
   email:
     recipients:
       - [e-mail]
     on_success: change