bump Ruby version

.travis.yml

@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-  - 2.4.0
+  - 2.4.1
 install: gem install bundler && bundle install
 script: bundle exec jekyll build
 after_success: bundle exec s3_website push

Gemfile

@@ -1,4 +1,7 @@
 source 'https://rubygems.org'
+
+ruby '2.4.1'
+
 gem 'jekyll'
 gem 'jekyll-paginate'
 gem 'nokogiri'

Gemfile.lock

@@ -1,20 +1,20 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.0.2)
+    activesupport (5.1.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.0)
+    addressable (2.5.1)
       public_suffix (~> 2.0, >= 2.0.2)
-    aws-sdk (2.8.12)
-      aws-sdk-resources (= 2.8.12)
-    aws-sdk-core (2.8.12)
+    aws-sdk (2.9.37)
+      aws-sdk-resources (= 2.9.37)
+    aws-sdk-core (2.9.37)
       aws-sigv4 (~> 1.0)
       jmespath (~> 1.0)
-    aws-sdk-resources (2.8.12)
-      aws-sdk-core (= 2.8.12)
+    aws-sdk-resources (2.9.37)
+      aws-sdk-core (= 2.9.37)
     aws-sigv4 (1.0.0)
     colorator (1.1.0)
     colored (1.2)
@@ -28,16 +28,16 @@ GEM
       ffi (>= 1.3.0)
     ffi (1.9.18)
     forwardable-extended (2.6.0)
-    html-proofer (3.6.0)
+    html-proofer (3.7.2)
       activesupport (>= 4.2, < 6.0)
       addressable (~> 2.3)
       colored (~> 1.2)
       mercenary (~> 0.3.2)
-      nokogiri (~> 1.5)
+      nokogiri (~> 1.7)
       parallel (~> 1.3)
       typhoeus (~> 0.7)
       yell (~> 2.0)
-    i18n (0.8.1)
+    i18n (0.8.4)
     jekyll (3.4.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -62,11 +62,11 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.1.0)
-    minitest (5.10.1)
-    nokogiri (1.7.1)
-      mini_portile2 (~> 2.1.0)
-    parallel (1.11.1)
+    mini_portile2 (2.2.0)
+    minitest (5.10.2)
+    nokogiri (1.8.0)
+      mini_portile2 (~> 2.2.0)
+    parallel (1.11.2)
     pathutil (0.14.0)
       forwardable-extended (~> 2.6)
     public_suffix (2.0.5)
@@ -82,8 +82,8 @@ GEM
       dotenv (~> 1.0)
       thor (~> 0.18)
     safe_yaml (1.0.4)
-    sass (3.4.23)
-    scss_lint (0.52.0)
+    sass (3.4.24)
+    scss_lint (0.53.0)
       rake (>= 0.9, < 13)
       sass (~> 3.4.20)
     therubyracer (0.12.3)
@@ -110,5 +110,8 @@ DEPENDENCIES
   scss_lint
   therubyracer
 
+RUBY VERSION
+   ruby 2.4.1p111
+
 BUNDLED WITH
    1.14.6