diff --git a/Gemfile.lock b/Gemfile.lock
index 0b201ea..e19605e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,7 +43,7 @@ GEM
       thread_safe (~> 0.3, >= 0.3.1)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
-    builder (3.2.2)
+    builder (3.2.4)
     byebug (9.0.5)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
@@ -55,6 +55,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.2)
+    crass (1.0.6)
     debug_inspector (0.0.2)
     declarative (0.0.8)
       uber (>= 0.0.15)
@@ -78,7 +79,8 @@ GEM
       rack-accept
       virtus (>= 1.0.0)
     hashie (3.4.4)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
     jbuilder (2.5.0)
       activesupport (>= 3.0.0, < 5.1)
@@ -87,25 +89,26 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.3)
-    loofah (2.0.3)
+    json (1.8.6)
+    loofah (2.19.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.4)
       mime-types (>= 1.16, < 4)
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
-    minitest (5.9.0)
+    mini_portile2 (2.8.0)
+    minitest (5.16.3)
     multi_json (1.12.1)
     multi_xml (0.5.5)
     mustermann19 (0.4.4)
       enumerable-lazy
-    nokogiri (1.6.8)
-      mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
-    pkg-config (1.1.7)
-    rack (1.6.4)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    racc (1.6.0)
+    rack (1.6.13)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-test (0.6.3)
@@ -121,14 +124,14 @@ GEM
       bundler (>= 1.3.0, < 2.0)
       railties (= 4.2.4)
       sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
+    rails-deprecated_sanitizer (1.0.4)
       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 (1.4.3)
+      loofah (~> 2.3)
     railties (4.2.4)
       actionpack (= 4.2.4)
       activesupport (= 4.2.4)
@@ -180,12 +183,12 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.3.11)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (2.0.5)
     turbolinks (5.0.0)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.0)
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uber (0.0.15)
     uglifier (3.0.0)