diff --git a/Gemfile.lock b/Gemfile.lock
index 4f419fe..19208d1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
     bootstrap-sass (3.3.4.1)
       autoprefixer-rails (>= 5.0.0.1)
       sass (>= 3.2.19)
-    builder (3.2.2)
+    builder (3.2.4)
     byebug (4.0.3)
       columnize (= 0.9.0)
     cancancan (1.12.0)
@@ -79,7 +79,9 @@ GEM
     coffee-script-source (1.9.1.1)
     colorize (0.7.7)
     columnize (0.9.0)
+    concurrent-ruby (1.1.8)
     connection_pool (2.2.0)
+    crass (1.0.6)
     debug_inspector (0.0.2)
     devise (3.5.1)
       bcrypt (~> 3.0)
@@ -100,7 +102,8 @@ GEM
       activesupport (>= 4.1.0)
     hitimes (1.2.2)
     hitimes (1.2.2-x86-mingw32)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.2.16)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)
@@ -111,31 +114,34 @@ GEM
     jquery-turbolinks (2.1.0)
       railties (>= 3.1.0)
       turbolinks
-    json (1.8.2)
+    json (1.8.6)
     kaminari (0.16.3)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
-    loofah (2.0.2)
+    loofah (2.9.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.5)
-    mini_portile (0.6.2)
-    minitest (5.6.1)
+    mini_portile2 (2.5.1)
+    minitest (5.14.4)
     multi_json (1.11.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
-    nokogiri (1.6.6.2-x86-mingw32)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.11.5)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.5-x86-mingw32)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (0.18.2)
     pg (0.18.2-x86-mingw32)
     polyamorous (1.1.0)
       activerecord (>= 3.0)
-    rack (1.6.1)
+    racc (1.5.2)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.1)
@@ -149,14 +155,14 @@ GEM
       bundler (>= 1.3.0, < 2.0)
       railties (= 4.2.1)
       sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
+    rails-deprecated_sanitizer (1.0.4)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.6)
-      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 (1.0.2)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     rails_config (0.4.2)
       activesupport (>= 3.0)
     railties (4.2.1)
@@ -205,13 +211,13 @@ GEM
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     timers (4.0.1)
       hitimes
     turbolinks (2.5.3)
       coffee-rails
-    tzinfo (1.2.2)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
     tzinfo-data (1.2015.5)
       tzinfo (>= 1.0.0)