diff --git a/Gemfile.lock b/Gemfile.lock
index 747d337..ecad55b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,43 +1,43 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.0)
-      actionpack (= 5.2.0)
+    actioncable (5.2.2.1)
+      actionpack (= 5.2.2.1)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.0)
-      actionpack (= 5.2.0)
-      actionview (= 5.2.0)
-      activejob (= 5.2.0)
+    actionmailer (5.2.2.1)
+      actionpack (= 5.2.2.1)
+      actionview (= 5.2.2.1)
+      activejob (= 5.2.2.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.0)
-      actionview (= 5.2.0)
-      activesupport (= 5.2.0)
+    actionpack (5.2.2.1)
+      actionview (= 5.2.2.1)
+      activesupport (= 5.2.2.1)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.0)
-      activesupport (= 5.2.0)
+    actionview (5.2.2.1)
+      activesupport (= 5.2.2.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.0)
-      activesupport (= 5.2.0)
+    activejob (5.2.2.1)
+      activesupport (= 5.2.2.1)
       globalid (>= 0.3.6)
-    activemodel (5.2.0)
-      activesupport (= 5.2.0)
-    activerecord (5.2.0)
-      activemodel (= 5.2.0)
-      activesupport (= 5.2.0)
+    activemodel (5.2.2.1)
+      activesupport (= 5.2.2.1)
+    activerecord (5.2.2.1)
+      activemodel (= 5.2.2.1)
+      activesupport (= 5.2.2.1)
       arel (>= 9.0)
-    activestorage (5.2.0)
-      actionpack (= 5.2.0)
-      activerecord (= 5.2.0)
+    activestorage (5.2.2.1)
+      actionpack (= 5.2.2.1)
+      activerecord (= 5.2.2.1)
       marcel (~> 0.3.1)
-    activesupport (5.2.0)
+    activesupport (5.2.2.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -51,14 +51,14 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.5)
     crass (1.0.4)
-    erubi (1.7.1)
+    erubi (1.8.0)
     execjs (2.7.0)
     ffi (1.9.23)
-    globalid (0.4.1)
+    globalid (0.4.2)
       activesupport (>= 4.2.0)
-    i18n (1.0.0)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     immutable-struct (2.3.0)
     jbuilder (2.7.0)
@@ -68,50 +68,50 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    loofah (2.2.2)
+    loofah (2.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    mail (2.7.0)
+    mail (2.7.1)
       mini_mime (>= 0.1.1)
-    marcel (0.3.2)
+    marcel (0.3.3)
       mimemagic (~> 0.3.2)
-    method_source (0.9.0)
-    mimemagic (0.3.2)
-    mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    method_source (0.9.2)
+    mimemagic (0.3.3)
+    mini_mime (1.0.1)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     multi_json (1.13.1)
-    nio4r (2.3.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
-    rack (2.0.4)
-    rack-test (1.0.0)
+    nio4r (2.3.1)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
+    rack (2.0.6)
+    rack-test (1.1.0)
       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)
+    rails (5.2.2.1)
+      actioncable (= 5.2.2.1)
+      actionmailer (= 5.2.2.1)
+      actionpack (= 5.2.2.1)
+      actionview (= 5.2.2.1)
+      activejob (= 5.2.2.1)
+      activemodel (= 5.2.2.1)
+      activerecord (= 5.2.2.1)
+      activestorage (= 5.2.2.1)
+      activesupport (= 5.2.2.1)
       bundler (>= 1.3.0)
-      railties (= 5.2.0)
+      railties (= 5.2.2.1)
       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 (5.2.0)
-      actionpack (= 5.2.0)
-      activesupport (= 5.2.0)
+    railties (5.2.2.1)
+      actionpack (= 5.2.2.1)
+      activesupport (= 5.2.2.1)
       method_source
       rake (>= 0.8.7)
-      thor (>= 0.18.1, < 2.0)
-    rake (12.3.1)
+      thor (>= 0.19.0, < 2.0)
+    rake (12.3.2)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -130,7 +130,7 @@ GEM
       tilt (>= 1.1, < 3)
     sdoc (1.0.0)
       rdoc (>= 5.0)
-    sprockets (3.7.1)
+    sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.1)
@@ -141,7 +141,7 @@ GEM
       i18n
       immutable-struct
       rails (>= 4.2.5)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     tzinfo (1.2.5)
@@ -167,4 +167,4 @@ DEPENDENCIES
   uglifier
 
 BUNDLED WITH
-   1.16.1
+   1.17.3