.travis.yml in textbringer-0.2.1 vs .travis.yml in textbringer-0.2.2

@@ -2,14 +2,14 @@
 matrix:
   include:
     - os: linux
       dist: trusty
       sudo: false
-      rvm: 2.3.3
+      rvm: 2.3.4
     - os: linux
       dist: trusty
       sudo: false
-      rvm: 2.4.0
+      rvm: 2.4.1
     - os: linux
       dist: trusty
       sudo: false
       rvm: ruby-head
     - os: osx