diff --git a/Gemfile.lock b/Gemfile.lock
index 21d6dd9..3e99d6b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     bootstrap-sass (3.3.5)
       autoprefixer-rails (>= 5.0.0.1)
       sass (>= 3.2.19)
-    builder (3.2.2)
+    builder (3.2.4)
     byebug (8.2.2)
     capybara (2.6.2)
       addressable
@@ -71,6 +71,8 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
+    concurrent-ruby (1.1.6)
+    crass (1.0.6)
     daemons (1.2.3)
     database_cleaner (1.5.1)
     debug_inspector (0.0.2)
@@ -95,7 +97,8 @@ GEM
     globalid (0.3.6)
       activesupport (>= 4.1.0)
     hike (1.2.3)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (1.5.3)
       activesupport (>= 3.0.0)
       multi_json (>= 1.2.0)
@@ -103,19 +106,20 @@ GEM
       rails-dom-testing (~> 1.0)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.3)
+    json (1.8.6)
     libv8 (3.16.14.13)
-    loofah (2.0.3)
+    loofah (2.4.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
     mime-types (2.99)
-    mini_portile2 (2.0.0)
-    minitest (5.8.4)
+    mini_portile2 (2.4.0)
+    minitest (5.14.0)
     multi_json (1.11.2)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
+    nokogiri (1.10.9)
+      mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     pg (0.18.4)
     pry (0.10.3)
@@ -130,7 +134,7 @@ GEM
     puma (3.12.4)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.5.1)
@@ -146,12 +150,12 @@ GEM
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
-      activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging
@@ -228,11 +232,11 @@ GEM
       eventmachine (~> 1.0, >= 1.0.4)
       rack (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     turbolinks (2.5.3)
       coffee-rails
-    tzinfo (1.2.2)
+    tzinfo (1.2.6)
       thread_safe (~> 0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)
@@ -243,7 +247,7 @@ GEM
       nokogiri (~> 1.6)
       rubyzip (~> 1.0)
       selenium-webdriver (~> 3.0)
-    xpath (2.0.0)
+    xpath (2.1.0)
       nokogiri (~> 1.3)
 
 PLATFORMS