diff --git a/.ruby-version b/.ruby-version
index 8e8299dc..aedc15bb 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4.2
+2.5.3
diff --git a/.travis.yml b/.travis.yml
index 7161af67..e76f8581 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,5 @@
 language: ruby
 
-rvm: 2.4.2
-
 services:
   - redis-server
 
diff --git a/Gemfile b/Gemfile
index 918d0887..2c728f11 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-ruby '2.4.2'
+ruby '2.5.3'
 
 gem 'travis-logger',     git: 'https://github.com/travis-ci/travis-logger'
 gem 'travis-exceptions', git: 'https://github.com/travis-ci/travis-exceptions'
@@ -20,9 +20,9 @@ gem 'jemalloc', git: 'https://github.com/joshk/jemalloc-rb'
 
 gem 'gh'
 gem 'aws-sdk'
-gem 'actionmailer'
+gem 'actionmailer',    '>= 5.2.2.1'
 gem 'roadie'
-gem 'roadie-rails',    '~> 1.0'
+gem 'roadie-rails',    '~> 2.0'
 gem 'multi_json'
 
 gem 'faraday'
diff --git a/Gemfile.lock b/Gemfile.lock
index 45bd13f2..186053d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,29 +56,29 @@ GEM
   remote: https://rubygems.org/
   specs:
     HDRHistogram (0.1.9)
-    actionmailer (5.2.1)
-      actionpack (= 5.2.1)
-      actionview (= 5.2.1)
-      activejob (= 5.2.1)
+    actionmailer (5.2.3)
+      actionpack (= 5.2.3)
+      actionview (= 5.2.3)
+      activejob (= 5.2.3)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.1)
-      actionview (= 5.2.1)
-      activesupport (= 5.2.1)
+    actionpack (5.2.3)
+      actionview (= 5.2.3)
+      activesupport (= 5.2.3)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.1)
-      activesupport (= 5.2.1)
+    actionview (5.2.3)
+      activesupport (= 5.2.3)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.1)
-      activesupport (= 5.2.1)
+    activejob (5.2.3)
+      activesupport (= 5.2.3)
       globalid (>= 0.3.6)
-    activesupport (5.2.1)
+    activesupport (5.2.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -683,7 +683,7 @@ GEM
     backports (3.11.4)
     builder (3.2.3)
     coderay (1.1.2)
-    concurrent-ruby (1.1.4)
+    concurrent-ruby (1.1.5)
     connection_pool (2.2.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -691,7 +691,7 @@ GEM
     css_parser (1.6.0)
       addressable
     diff-lcs (1.3)
-    erubi (1.7.1)
+    erubi (1.8.0)
     faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
     faraday_middleware (0.12.2)
@@ -707,7 +707,7 @@ GEM
       multi_json (~> 1.0)
       net-http-persistent (~> 2.9)
       net-http-pipeline
-    globalid (0.4.1)
+    globalid (0.4.2)
       activesupport (>= 4.2.0)
     guard (2.14.2)
       formatador (>= 0.2.4)
@@ -725,7 +725,7 @@ GEM
       rspec (>= 2.99.0, < 4.0)
     hashr (2.0.1)
     hitimes (1.3.0)
-    i18n (1.2.0)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     jmespath (1.4.0)
     jwt (2.1.0)
@@ -744,7 +744,7 @@ GEM
     metaclass (0.0.4)
     method_source (0.9.0)
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     mocha (0.10.5)
       metaclass (~> 0.0.1)
@@ -753,15 +753,15 @@ GEM
     nenv (0.3.0)
     net-http-persistent (2.9.4)
     net-http-pipeline (1.0.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.2)
+      mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.6)
+    rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -769,13 +769,13 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.4)
       loofah (~> 2.2, >= 2.2.2)
-    railties (5.2.1)
-      actionpack (= 5.2.1)
-      activesupport (= 5.2.1)
+    railties (5.2.3)
+      actionpack (= 5.2.3)
+      activesupport (= 5.2.3)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.3.1)
+    rake (12.3.2)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -785,8 +785,8 @@ GEM
     roadie (3.4.0)
       css_parser (~> 1.4)
       nokogiri (~> 1.5)
-    roadie-rails (1.3.0)
-      railties (>= 3.0, < 5.3)
+    roadie-rails (2.0.0)
+      railties (>= 5.1, < 5.3)
       roadie (~> 3.1)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
@@ -824,7 +824,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  actionmailer
+  actionmailer (>= 5.2.2.1)
   aws-sdk
   faraday
   faraday_middleware
@@ -840,7 +840,7 @@ DEPENDENCIES
   multi_json
   redis-namespace
   roadie
-  roadie-rails (~> 1.0)
+  roadie-rails (~> 2.0)
   rspec (~> 3.8)
   sentry-raven
   sidekiq (~> 4.0.0)
@@ -852,7 +852,7 @@ DEPENDENCIES
   webmock (~> 1.8.0)
 
 RUBY VERSION
-   ruby 2.4.2p198
+   ruby 2.5.3p105
 
 BUNDLED WITH
-   1.17.1
+   1.17.3