diff --git a/.travis.yml b/.travis.yml
index e6a01b4396..d500a606d3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,46 +4,46 @@ sudo: false
 
 matrix:
   include:
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       script:
         - bundle exec danger
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: Gemfile
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: gemfiles/rack_edge.gemfile
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: gemfiles/rack_1.5.2.gemfile
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: gemfiles/rails_edge.gemfile
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: gemfiles/rails_5.gemfile
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: gemfiles/multi_json.gemfile
       script:
         - bundle exec rake
         - bundle exec rspec spec/integration/multi_json
-    - rvm: 2.4.2
+    - rvm: 2.4.5
       gemfile: gemfiles/multi_xml.gemfile
       script:
         - bundle exec rake
         - bundle exec rspec spec/integration/multi_xml
-    - rvm: 2.3.5
+    - rvm: 2.3.8
       gemfile: Gemfile
-    - rvm: 2.3.5
+    - rvm: 2.3.8
       gemfile: gemfiles/rack_edge.gemfile
-    - rvm: 2.3.5
+    - rvm: 2.3.8
       gemfile: gemfiles/rack_1.5.2.gemfile
-    - rvm: 2.3.5
+    - rvm: 2.3.8
       gemfile: gemfiles/rails_5.gemfile
-    - rvm: 2.2.8
+    - rvm: 2.2.10
       gemfile: Gemfile
-    - rvm: 2.2.8
+    - rvm: 2.2.10
       gemfile: gemfiles/rack_1.5.2.gemfile
-    - rvm: 2.2.8
+    - rvm: 2.2.10
       gemfile: gemfiles/rails_5.gemfile
-    - rvm: 2.2.8
+    - rvm: 2.2.10
       gemfile: gemfiles/rails_4.gemfile
-    - rvm: 2.2.8
+    - rvm: 2.2.10
       gemfile: gemfiles/rails_3.gemfile
     - rvm: ruby-head
     - rvm: jruby-head