diff --git a/Gemfile.lock b/Gemfile.lock
index cd11f98..da17656 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,40 +1,46 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.2.10)
+    activesupport (4.2.11.3)
       i18n (~> 0.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
+    async (2.2.1)
+      console (~> 1.10)
+      io-event (~> 1.1.0)
+      timers (~> 4.1)
     colorator (1.1.0)
-    colorize (0.8.1)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.10)
+    console (1.16.2)
+      fiber-local
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    ethon (0.11.0)
-      ffi (>= 1.3.0)
+    ethon (0.15.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
-    ffi (1.9.25)
+    ffi (1.15.5)
+    fiber-local (1.0.0)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
     html-pipeline (2.7.1)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (3.8.0)
-      activesupport (>= 4.2, < 6.0)
+    html-proofer (5.0.0)
       addressable (~> 2.3)
-      colorize (~> 0.8)
-      mercenary (~> 0.3.2)
-      nokogiri (~> 1.8.1)
-      parallel (~> 1.3)
+      async (~> 2.1)
+      nokogiri (~> 1.13)
+      rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.6.0)
-    i18n (0.9.1)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
+    io-event (1.1.1)
     jekyll (3.8.5)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -76,15 +82,17 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
-    mini_portile2 (2.3.0)
-    minitest (5.11.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
-    parallel (1.12.1)
+    mini_portile2 (2.8.0)
+    minitest (5.16.3)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     posix-spawn (0.3.13)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
+    racc (1.6.0)
+    rainbow (3.1.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -97,11 +105,13 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     thread_safe (0.3.6)
-    typhoeus (1.3.0)
+    timers (4.3.5)
+    typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.4)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
-    yell (2.0.7)
+    yell (2.2.2)
+    zeitwerk (2.6.1)
 
 PLATFORMS
   ruby