diff --git a/Gemfile b/Gemfile
index 3834c55c..bb7b1362 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ end
 
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '~> 5.1.1'
+gem 'rails', '~> 5.2.1'
 # Use postgresql as the database for Active Record
 gem 'pg', '~> 0.20'
 # Use Puma as the app server
diff --git a/Gemfile.lock b/Gemfile.lock
index 603daf59..6e2163e7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,44 +1,48 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.1.6)
-      actionpack (= 5.1.6)
+    actioncable (5.2.1.1)
+      actionpack (= 5.2.1.1)
       nio4r (~> 2.0)
-      websocket-driver (~> 0.6.1)
-    actionmailer (5.1.6)
-      actionpack (= 5.1.6)
-      actionview (= 5.1.6)
-      activejob (= 5.1.6)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.1.1)
+      actionpack (= 5.2.1.1)
+      actionview (= 5.2.1.1)
+      activejob (= 5.2.1.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.1.6)
-      actionview (= 5.1.6)
-      activesupport (= 5.1.6)
+    actionpack (5.2.1.1)
+      actionview (= 5.2.1.1)
+      activesupport (= 5.2.1.1)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.1.6)
-      activesupport (= 5.1.6)
+    actionview (5.2.1.1)
+      activesupport (= 5.2.1.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.1.6)
-      activesupport (= 5.1.6)
+    activejob (5.2.1.1)
+      activesupport (= 5.2.1.1)
       globalid (>= 0.3.6)
-    activemodel (5.1.6)
-      activesupport (= 5.1.6)
-    activerecord (5.1.6)
-      activemodel (= 5.1.6)
-      activesupport (= 5.1.6)
-      arel (~> 8.0)
-    activesupport (5.1.6)
+    activemodel (5.2.1.1)
+      activesupport (= 5.2.1.1)
+    activerecord (5.2.1.1)
+      activemodel (= 5.2.1.1)
+      activesupport (= 5.2.1.1)
+      arel (>= 9.0)
+    activestorage (5.2.1.1)
+      actionpack (= 5.2.1.1)
+      activerecord (= 5.2.1.1)
+      marcel (~> 0.3.1)
+    activesupport (5.2.1.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    arel (8.0.0)
+    arel (9.0.0)
     axlsx (3.0.0.pre)
       htmlentities (~> 4.3, >= 4.3.4)
       mimemagic (~> 0.3)
@@ -58,7 +62,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.3)
     crass (1.0.4)
     diff-lcs (1.3)
     erubi (1.7.1)
@@ -82,7 +86,7 @@ GEM
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
     htmlentities (4.3.4)
-    i18n (1.0.1)
+    i18n (1.1.1)
       concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
@@ -91,21 +95,23 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.2)
+    loofah (2.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.13)
-    mail (2.7.0)
+    mail (2.7.1)
       mini_mime (>= 0.1.1)
-    method_source (0.9.0)
+    marcel (0.3.3)
+      mimemagic (~> 0.3.2)
+    method_source (0.9.2)
     mimemagic (0.3.2)
-    mini_mime (1.0.0)
+    mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     nenv (0.3.0)
-    nio4r (2.3.0)
-    nokogiri (1.8.2)
+    nio4r (2.3.1)
+    nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
@@ -119,34 +125,35 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     puma (3.11.4)
-    rack (2.0.5)
+    rack (2.0.6)
     rack-proxy (0.6.4)
       rack
-    rack-test (1.0.0)
+    rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.1.6)
-      actioncable (= 5.1.6)
-      actionmailer (= 5.1.6)
-      actionpack (= 5.1.6)
-      actionview (= 5.1.6)
-      activejob (= 5.1.6)
-      activemodel (= 5.1.6)
-      activerecord (= 5.1.6)
-      activesupport (= 5.1.6)
+    rails (5.2.1.1)
+      actioncable (= 5.2.1.1)
+      actionmailer (= 5.2.1.1)
+      actionpack (= 5.2.1.1)
+      actionview (= 5.2.1.1)
+      activejob (= 5.2.1.1)
+      activemodel (= 5.2.1.1)
+      activerecord (= 5.2.1.1)
+      activestorage (= 5.2.1.1)
+      activesupport (= 5.2.1.1)
       bundler (>= 1.3.0)
-      railties (= 5.1.6)
+      railties (= 5.2.1.1)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.4)
       loofah (~> 2.2, >= 2.2.2)
-    railties (5.1.6)
-      actionpack (= 5.1.6)
-      activesupport (= 5.1.6)
+    railties (5.2.1.1)
+      actionpack (= 5.2.1.1)
+      activesupport (= 5.2.1.1)
       method_source
       rake (>= 0.8.7)
-      thor (>= 0.18.1, < 2.0)
+      thor (>= 0.19.0, < 2.0)
     rake (12.3.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
@@ -191,14 +198,14 @@ GEM
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
       spring (>= 1.2, < 3.0)
-    sprockets (3.7.1)
+    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 (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     ttfunk (1.5.1)
@@ -215,7 +222,7 @@ GEM
       activesupport (>= 4.2)
       rack-proxy (>= 0.6.1)
       railties (>= 4.2)
-    websocket-driver (0.6.5)
+    websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.3)
 
@@ -234,7 +241,7 @@ DEPENDENCIES
   pg (~> 0.20)
   prawn (~> 2.2)
   puma (~> 3.7)
-  rails (~> 5.1.1)
+  rails (~> 5.2.1)
   rake
   rspec-rails (~> 3.5)
   rubyzip (>= 1.2.1)