diff --git a/Gemfile b/Gemfile
index 993581d5..e2b91a53 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 gem 'figaro', '~> 1.1.0'
 gem 'jbuilder'
 gem 'pg', '~> 1.0.0'
-gem 'rails', '~> 5.0.0'
+gem 'rails', '~> 5.2.0'
 gem 'recaptcha', require: 'recaptcha/rails'
 gem 'sass-rails'
 gem 'simpleidn', '0.0.7' # For Punycode
diff --git a/Gemfile.lock b/Gemfile.lock
index 7f71e7d7..25c903ab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,46 +2,50 @@ GEM
   remote: https://rubygems.org/
   specs:
     SyslogLogger (2.0)
-    actioncable (5.0.7)
-      actionpack (= 5.0.7)
-      nio4r (>= 1.2, < 3.0)
-      websocket-driver (~> 0.6.1)
-    actionmailer (5.0.7)
-      actionpack (= 5.0.7)
-      actionview (= 5.0.7)
-      activejob (= 5.0.7)
+    actioncable (5.2.0)
+      actionpack (= 5.2.0)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.0)
+      actionpack (= 5.2.0)
+      actionview (= 5.2.0)
+      activejob (= 5.2.0)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.0.7)
-      actionview (= 5.0.7)
-      activesupport (= 5.0.7)
+    actionpack (5.2.0)
+      actionview (= 5.2.0)
+      activesupport (= 5.2.0)
       rack (~> 2.0)
-      rack-test (~> 0.6.3)
+      rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.0.7)
-      activesupport (= 5.0.7)
+    actionview (5.2.0)
+      activesupport (= 5.2.0)
       builder (~> 3.1)
-      erubis (~> 2.7.0)
+      erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.0.7)
-      activesupport (= 5.0.7)
+    activejob (5.2.0)
+      activesupport (= 5.2.0)
       globalid (>= 0.3.6)
-    activemodel (5.0.7)
-      activesupport (= 5.0.7)
-    activerecord (5.0.7)
-      activemodel (= 5.0.7)
-      activesupport (= 5.0.7)
-      arel (~> 7.0)
-    activesupport (5.0.7)
+    activemodel (5.2.0)
+      activesupport (= 5.2.0)
+    activerecord (5.2.0)
+      activemodel (= 5.2.0)
+      activesupport (= 5.2.0)
+      arel (>= 9.0)
+    activestorage (5.2.0)
+      actionpack (= 5.2.0)
+      activerecord (= 5.2.0)
+      marcel (~> 0.3.1)
+    activesupport (5.2.0)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
-    arel (7.1.4)
+    arel (9.0.0)
     builder (3.2.3)
     capybara (3.1.0)
       addressable
@@ -56,7 +60,7 @@ GEM
       safe_yaml (~> 1.0.0)
     crass (1.0.4)
     docile (1.3.1)
-    erubis (2.7.0)
+    erubi (1.7.1)
     execjs (2.7.0)
     ffi (1.9.23)
     figaro (1.1.1)
@@ -76,7 +80,10 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.7.0)
       mini_mime (>= 0.1.1)
+    marcel (0.3.2)
+      mimemagic (~> 0.3.2)
     method_source (0.8.2)
+    mimemagic (0.3.2)
     mina (0.3.8)
       open4 (~> 1.3.4)
       rake
@@ -85,7 +92,7 @@ GEM
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.8.3)
+    nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     open4 (1.3.4)
     pg (1.0.0)
@@ -96,28 +103,29 @@ GEM
     public_suffix (3.0.2)
     puma (3.11.4)
     rack (2.0.5)
-    rack-test (0.6.3)
-      rack (>= 1.0)
-    rails (5.0.7)
-      actioncable (= 5.0.7)
-      actionmailer (= 5.0.7)
-      actionpack (= 5.0.7)
-      actionview (= 5.0.7)
-      activejob (= 5.0.7)
-      activemodel (= 5.0.7)
-      activerecord (= 5.0.7)
-      activesupport (= 5.0.7)
+    rack-test (1.0.0)
+      rack (>= 1.0, < 3)
+    rails (5.2.0)
+      actioncable (= 5.2.0)
+      actionmailer (= 5.2.0)
+      actionpack (= 5.2.0)
+      actionview (= 5.2.0)
+      activejob (= 5.2.0)
+      activemodel (= 5.2.0)
+      activerecord (= 5.2.0)
+      activestorage (= 5.2.0)
+      activesupport (= 5.2.0)
       bundler (>= 1.3.0)
-      railties (= 5.0.7)
+      railties (= 5.2.0)
       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 (5.0.7)
-      actionpack (= 5.0.7)
-      activesupport (= 5.0.7)
+    railties (5.2.0)
+      actionpack (= 5.2.0)
+      activesupport (= 5.2.0)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
@@ -168,7 +176,7 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
-    websocket-driver (0.6.5)
+    websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.3)
     xpath (3.0.0)
@@ -186,7 +194,7 @@ DEPENDENCIES
   pg (~> 1.0.0)
   pry
   puma
-  rails (~> 5.0.0)
+  rails (~> 5.2.0)
   recaptcha
   sass-rails
   simplecov