.travis.yml in smartsheet-2.86.0 vs .travis.yml in smartsheet-2.86.1

@@ -22,6 +22,7 @@
   gem: smartsheet
   gemspec: smartsheet.gemspec
   on:
     repo: smartsheet-platform/smartsheet-ruby-sdk
     branch: master
+    rvm: 2.4
 after_deploy: "echo 'Finished deployment process'"