diff --git a/Gemfile.lock b/Gemfile.lock
index 8491f27..2d0207a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,7 +19,7 @@ GEM
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
     activejob (4.2.8)
       activesupport (= 4.2.8)
       globalid (>= 0.3.0)
@@ -32,7 +32,6 @@ GEM
       arel (~> 6.0)
     activesupport (4.2.8)
       i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
@@ -40,7 +39,7 @@ GEM
     bcrypt (3.1.11)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
-    builder (3.2.2)
+    builder (3.2.4)
     byebug (8.2.1)
     chosen-rails (1.4.3)
       coffee-rails (>= 3.2)
@@ -86,7 +85,8 @@ GEM
     foreman (0.87.1)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.4.0)
       activesupport (>= 3.0.0, < 5.1)
       multi_json (~> 1.2)
@@ -97,21 +97,22 @@ GEM
     json (1.8.5)
     kramdown (2.3.0)
       rexml
-    loofah (2.0.3)
+    loofah (2.19.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.99)
-    mini_portile2 (2.0.0)
-    minitest (5.8.4)
+    mini_portile2 (2.8.0)
+    minitest (5.16.3)
     multi_json (1.11.2)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
-    nokogumbo (1.5.0)
-      nokogiri
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (0.17.0)
-    rack (1.6.4)
+    racc (1.6.0)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.8)
@@ -125,14 +126,14 @@ GEM
       bundler (>= 1.3.0, < 2.0)
       railties (= 4.2.8)
       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)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging
@@ -155,10 +156,9 @@ GEM
     rexml (3.2.4)
     rinku (2.0.6)
     ruby-oembed (0.13.1)
-    sanitize (4.6.6)
+    sanitize (6.0.0)
       crass (~> 1.0.2)
-      nokogiri (>= 1.4.4)
-      nokogumbo (~> 1.4)
+      nokogiri (>= 1.12.0)
     sass (3.4.21)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
@@ -184,11 +184,11 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.3.11)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (2.0.2)
     turbolinks (2.5.3)
       coffee-rails
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)