diff --git a/Gemfile.lock b/Gemfile.lock
index 52d391f..c9cb17a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,24 +37,28 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.0)
-    builder (3.2.2)
+    builder (3.2.4)
+    concurrent-ruby (1.1.6)
+    crass (1.0.6)
     erubis (2.7.0)
-    globalid (0.3.0)
-      activesupport (>= 4.1.0)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
     hike (1.2.3)
-    i18n (0.7.0)
-    json (1.8.2)
-    loofah (2.0.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    json (1.8.6)
+    loofah (2.4.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    mail (2.6.3)
-      mime-types (>= 1.16, < 3)
-    mime-types (2.4.3)
-    mini_portile (0.6.2)
-    minitest (5.5.1)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    mini_mime (1.0.2)
+    mini_portile2 (2.4.0)
+    minitest (5.14.0)
     multi_json (1.10.1)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
-    rack (1.6.0)
+    nokogiri (1.10.8)
+      mini_portile2 (~> 2.4.0)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.0)
@@ -73,12 +77,12 @@ GEM
       railties (>= 3.2.11)
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.5)
-      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 (1.0.1)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     railties (4.2.0)
       actionpack (= 4.2.0)
       activesupport (= 4.2.0)
@@ -97,9 +101,9 @@ GEM
       sprockets (>= 2.8, < 4.0)
     sqlite3 (1.3.10)
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.6)
     tilt (1.4.1)
-    tzinfo (1.2.2)
+    tzinfo (1.2.6)
       thread_safe (~> 0.1)
 
 PLATFORMS