diff --git a/Gemfile.lock b/Gemfile.lock
index 647d167..37963be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,43 +1,43 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.1)
-      actionpack (= 5.2.1)
+    actioncable (5.2.2)
+      actionpack (= 5.2.2)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.1)
-      actionpack (= 5.2.1)
-      actionview (= 5.2.1)
-      activejob (= 5.2.1)
+    actionmailer (5.2.2)
+      actionpack (= 5.2.2)
+      actionview (= 5.2.2)
+      activejob (= 5.2.2)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.1)
-      actionview (= 5.2.1)
-      activesupport (= 5.2.1)
+    actionpack (5.2.2)
+      actionview (= 5.2.2)
+      activesupport (= 5.2.2)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.1)
-      activesupport (= 5.2.1)
+    actionview (5.2.2)
+      activesupport (= 5.2.2)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.1)
-      activesupport (= 5.2.1)
+    activejob (5.2.2)
+      activesupport (= 5.2.2)
       globalid (>= 0.3.6)
-    activemodel (5.2.1)
-      activesupport (= 5.2.1)
-    activerecord (5.2.1)
-      activemodel (= 5.2.1)
-      activesupport (= 5.2.1)
+    activemodel (5.2.2)
+      activesupport (= 5.2.2)
+    activerecord (5.2.2)
+      activemodel (= 5.2.2)
+      activesupport (= 5.2.2)
       arel (>= 9.0)
-    activestorage (5.2.1)
-      actionpack (= 5.2.1)
-      activerecord (= 5.2.1)
+    activestorage (5.2.2)
+      actionpack (= 5.2.2)
+      activerecord (= 5.2.2)
       marcel (~> 0.3.1)
-    activesupport (5.2.1)
+    activesupport (5.2.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -48,7 +48,7 @@ GEM
       sshkit (>= 1.6.1, != 1.7.0)
     arel (9.0.0)
     ast (2.4.0)
-    autoprefixer-rails (9.3.1)
+    autoprefixer-rails (9.4.2)
       execjs
     backports (3.11.4)
     bcrypt (3.1.12)
@@ -97,12 +97,12 @@ GEM
     choice (0.2.0)
     coderay (1.1.2)
     concurrent-ruby (1.1.3)
-    coveralls (0.7.1)
-      multi_json (~> 1.3)
-      rest-client
-      simplecov (>= 0.7)
-      term-ansicolor
-      thor
+    coveralls (0.8.22)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.16.1)
+      term-ansicolor (~> 1.3)
+      thor (~> 0.19.4)
+      tins (~> 1.6)
     crass (1.0.4)
     cucumber (3.1.2)
       builder (>= 2.1.2)
@@ -232,7 +232,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    pry-rails (0.3.7)
+    pry-rails (0.3.8)
       pry (>= 0.10.4)
     public_suffix (3.0.3)
     puma (3.12.0)
@@ -241,18 +241,18 @@ GEM
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.1)
-      actioncable (= 5.2.1)
-      actionmailer (= 5.2.1)
-      actionpack (= 5.2.1)
-      actionview (= 5.2.1)
-      activejob (= 5.2.1)
-      activemodel (= 5.2.1)
-      activerecord (= 5.2.1)
-      activestorage (= 5.2.1)
-      activesupport (= 5.2.1)
+    rails (5.2.2)
+      actioncable (= 5.2.2)
+      actionmailer (= 5.2.2)
+      actionpack (= 5.2.2)
+      actionview (= 5.2.2)
+      activejob (= 5.2.2)
+      activemodel (= 5.2.2)
+      activerecord (= 5.2.2)
+      activestorage (= 5.2.2)
+      activesupport (= 5.2.2)
       bundler (>= 1.3.0)
-      railties (= 5.2.1)
+      railties (= 5.2.2)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
@@ -267,9 +267,9 @@ GEM
     rails-i18n (5.1.2)
       i18n (>= 0.7, < 2)
       railties (>= 5.0, < 6)
-    railties (5.2.1)
-      actionpack (= 5.2.1)
-      activesupport (= 5.2.1)
+    railties (5.2.2)
+      actionpack (= 5.2.2)
+      activesupport (= 5.2.2)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
@@ -360,9 +360,9 @@ GEM
       sshkit (~> 1.12)
     term-ansicolor (1.7.0)
       tins (~> 1.0)
-    thor (0.20.3)
+    thor (0.19.4)
     thread_safe (0.3.6)
-    tilt (2.0.8)
+    tilt (2.0.9)
     tins (1.20.2)
     turbolinks (5.2.0)
       turbolinks-source (~> 5.2)