.travis.yml in at_coder_friends-0.6.6 vs .travis.yml in at_coder_friends-0.6.7

@@ -1,8 +1,8 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.3.8
+  - 2.4.10
 env:
   global:
     - CC_TEST_REPORTER_ID=cb942bcc168feb78c43c506364d5344c5ec9a46a0b68dc66acb581e77c981ff1
     - COVERAGE=true
 before_install: