diff --git a/Gemfile b/Gemfile
index 20e3998..55b17e5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'http://rubygems.org'
 
-gem 'rails', '=2.3.10'
+gem 'rails', '= 5.2.4.3'
 gem 'rspec', '=1.3.1'
 gem 'rspec-rails', '=1.3.3'
 gem 'rest-client'
diff --git a/Gemfile.lock b/Gemfile.lock
index 241d7b1..bbada0d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,39 +1,127 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    actionmailer (2.3.10)
-      actionpack (= 2.3.10)
-    actionpack (2.3.10)
-      activesupport (= 2.3.10)
-      rack (~> 1.1.0)
-    activerecord (2.3.10)
-      activesupport (= 2.3.10)
-    activeresource (2.3.10)
-      activesupport (= 2.3.10)
-    activesupport (2.3.10)
+    actioncable (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      actionview (= 5.2.4.3)
+      activejob (= 5.2.4.3)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.2.4.3)
+      actionview (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
+      rack (~> 2.0, >= 2.0.8)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.2.4.3)
+      activesupport (= 5.2.4.3)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.2.4.3)
+      activesupport (= 5.2.4.3)
+      globalid (>= 0.3.6)
+    activemodel (5.2.4.3)
+      activesupport (= 5.2.4.3)
+    activerecord (5.2.4.3)
+      activemodel (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
+      arel (>= 9.0)
+    activestorage (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      activerecord (= 5.2.4.3)
+      marcel (~> 0.3.1)
+    activesupport (5.2.4.3)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
     addressable (2.2.2)
+    arel (9.0.0)
+    builder (3.2.4)
+    concurrent-ruby (1.1.6)
     crack (0.1.8)
+    crass (1.0.6)
+    erubi (1.9.0)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
+    i18n (1.8.2)
+      concurrent-ruby (~> 1.0)
     json (1.4.6)
     jsonschema (2.0.0)
+    loofah (2.5.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    marcel (0.3.3)
+      mimemagic (~> 0.3.2)
+    method_source (1.0.0)
     mime-types (1.16)
-    rack (1.1.0)
-    rails (2.3.10)
-      actionmailer (= 2.3.10)
-      actionpack (= 2.3.10)
-      activerecord (= 2.3.10)
-      activeresource (= 2.3.10)
-      activesupport (= 2.3.10)
-      rake (>= 0.8.3)
-    rake (0.8.7)
+    mimemagic (0.3.5)
+    mini_mime (1.0.2)
+    mini_portile2 (2.4.0)
+    minitest (5.14.1)
+    nio4r (2.5.2)
+    nokogiri (1.10.9)
+      mini_portile2 (~> 2.4.0)
+    rack (2.2.2)
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails (5.2.4.3)
+      actioncable (= 5.2.4.3)
+      actionmailer (= 5.2.4.3)
+      actionpack (= 5.2.4.3)
+      actionview (= 5.2.4.3)
+      activejob (= 5.2.4.3)
+      activemodel (= 5.2.4.3)
+      activerecord (= 5.2.4.3)
+      activestorage (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
+      bundler (>= 1.3.0)
+      railties (= 5.2.4.3)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.19.0, < 2.0)
+    rake (13.0.1)
     rest-client (1.6.1)
       mime-types (>= 1.16)
     rspec (1.3.1)
     rspec-rails (1.3.3)
       rack (>= 1.0.0)
       rspec (= 1.3.1)
+    sprockets (3.7.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.1)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    thor (1.0.1)
+    thread_safe (0.3.6)
+    tzinfo (1.2.7)
+      thread_safe (~> 0.1)
     webmock (1.4.0)
       addressable (>= 2.2.2)
       crack (>= 0.1.7)
+    websocket-driver (0.7.1)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.4)
 
 PLATFORMS
   ruby
@@ -41,8 +129,11 @@ PLATFORMS
 DEPENDENCIES
   json
   jsonschema
-  rails (= 2.3.10)
+  rails (= 5.2.4.3)
   rest-client
   rspec (= 1.3.1)
   rspec-rails (= 1.3.3)
   webmock
+
+BUNDLED WITH
+   1.17.3