diff --git a/.ruby-version b/.ruby-version
index 8e8299dcc..79a614418 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4.2
+2.4.4
diff --git a/Gemfile b/Gemfile
index da0becb45..e32e88837 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,8 +1,8 @@
 source 'https://rubygems.org'
 
 # core - base
-ruby '2.4.2'
-gem 'rails', '5.1.4'
+ruby '2.4.4'
+gem 'rails', '5.1.5'
 
 # core - rails additions
 gem 'activerecord-session_store'
diff --git a/Gemfile.lock b/Gemfile.lock
index 43ae0074c..0050ed48e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,37 +17,37 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.1.4)
-      actionpack (= 5.1.4)
+    actioncable (5.1.5)
+      actionpack (= 5.1.5)
       nio4r (~> 2.0)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.1.4)
-      actionpack (= 5.1.4)
-      actionview (= 5.1.4)
-      activejob (= 5.1.4)
+    actionmailer (5.1.5)
+      actionpack (= 5.1.5)
+      actionview (= 5.1.5)
+      activejob (= 5.1.5)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.1.4)
-      actionview (= 5.1.4)
-      activesupport (= 5.1.4)
+    actionpack (5.1.5)
+      actionview (= 5.1.5)
+      activesupport (= 5.1.5)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.1.4)
-      activesupport (= 5.1.4)
+    actionview (5.1.5)
+      activesupport (= 5.1.5)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.1.4)
-      activesupport (= 5.1.4)
+    activejob (5.1.5)
+      activesupport (= 5.1.5)
       globalid (>= 0.3.6)
-    activemodel (5.1.4)
-      activesupport (= 5.1.4)
-    activerecord (5.1.4)
-      activemodel (= 5.1.4)
-      activesupport (= 5.1.4)
+    activemodel (5.1.5)
+      activesupport (= 5.1.5)
+    activerecord (5.1.5)
+      activemodel (= 5.1.5)
+      activesupport (= 5.1.5)
       arel (~> 8.0)
     activerecord-nulldb-adapter (0.3.7)
       activerecord (>= 2.0.0)
@@ -57,7 +57,7 @@ GEM
       multi_json (~> 1.11, >= 1.11.2)
       rack (>= 1.5.2, < 3)
       railties (>= 4.0, < 5.2)
-    activesupport (5.1.4)
+    activesupport (5.1.5)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
@@ -129,7 +129,7 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     equalizer (0.0.11)
-    erubi (1.7.0)
+    erubi (1.7.1)
     eventmachine (1.2.5)
     execjs (2.7.0)
     factory_bot (4.8.2)
@@ -189,7 +189,7 @@ GEM
     http-form_data (2.0.0)
     http_parser.rb (0.6.0)
     httpclient (2.8.3)
-    i18n (0.9.1)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     icalendar (2.4.1)
     icalendar-recurrence (1.1.2)
@@ -224,7 +224,7 @@ GEM
     method_source (0.9.0)
     mime-types (2.99.3)
     mini_portile2 (2.3.0)
-    minitest (5.10.3)
+    minitest (5.11.3)
     multi_json (1.12.2)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
@@ -234,7 +234,7 @@ GEM
     nestful (1.1.3)
     net-ldap (0.16.1)
     netrc (0.11.0)
-    nio4r (2.1.0)
+    nio4r (2.3.0)
     nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
     nori (2.6.0)
@@ -298,22 +298,22 @@ GEM
       method_source (~> 0.9.0)
     public_suffix (3.0.1)
     puma (3.11.0)
-    rack (2.0.3)
+    rack (2.0.4)
     rack-livereload (0.3.16)
       rack
-    rack-test (0.8.2)
+    rack-test (1.0.0)
       rack (>= 1.0, < 3)
-    rails (5.1.4)
-      actioncable (= 5.1.4)
-      actionmailer (= 5.1.4)
-      actionpack (= 5.1.4)
-      actionview (= 5.1.4)
-      activejob (= 5.1.4)
-      activemodel (= 5.1.4)
-      activerecord (= 5.1.4)
-      activesupport (= 5.1.4)
+    rails (5.1.5)
+      actioncable (= 5.1.5)
+      actionmailer (= 5.1.5)
+      actionpack (= 5.1.5)
+      actionview (= 5.1.5)
+      activejob (= 5.1.5)
+      activemodel (= 5.1.5)
+      activerecord (= 5.1.5)
+      activesupport (= 5.1.5)
       bundler (>= 1.3.0)
-      railties (= 5.1.4)
+      railties (= 5.1.5)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
@@ -322,16 +322,16 @@ GEM
       loofah (~> 2.2, >= 2.2.2)
     rails-observers (0.1.5)
       activemodel (>= 4.0)
-    railties (5.1.4)
-      actionpack (= 5.1.4)
-      activesupport (= 5.1.4)
+    railties (5.1.5)
+      actionpack (= 5.1.5)
+      activesupport (= 5.1.5)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.2.2)
       rake
     raindrops (0.19.0)
-    rake (12.3.0)
+    rake (12.3.1)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -428,7 +428,7 @@ GEM
       multipart-post (~> 2.0)
       naught (~> 1.0)
       simple_oauth (~> 0.3.0)
-    tzinfo (1.2.4)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
@@ -519,7 +519,7 @@ DEPENDENCIES
   pre-commit
   puma
   rack-livereload
-  rails (= 5.1.4)
+  rails (= 5.1.5)
   rails-observers
   rb-fsevent
   rspec-rails
@@ -545,7 +545,7 @@ DEPENDENCIES
   zendesk_api
 
 RUBY VERSION
-   ruby 2.4.2p198
+   ruby 2.4.4p296
 
 BUNDLED WITH
-   1.16.0
+   1.16.1