.travis.yml in retriable-3.0.1 vs .travis.yml in retriable-3.0.2

@@ -3,16 +3,16 @@
 sudo: false
 language: ruby
 rvm:
   - 2.0.0
   - 2.1.10
-  - 2.2.6
-  - 2.3.3
-  - 2.4.0
+  - 2.2.7
+  - 2.3.4
+  - 2.4.1
   - rbx
   - jruby-9.0.5.0
-  - jruby-9.1.7.0
+  - jruby-9.1.8.0
   - ruby-head
   - jruby-head
 
 matrix:
   allow_failures:
@@ -21,9 +21,9 @@
     - rvm: jruby-head
 
 before_install:
   - gem update --system
   - gem install bundler
-  
+
 addons:
   code_climate:
     repo_token: 20a1139ef1830b4f813a10a03d90e8aa179b5226f75e75c5a949b25756ebf558