diff --git a/Gemfile b/Gemfile
index 7861dbef487..bb616592e16 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,6 +3,6 @@ source "https://rubygems.org"
 gem "github-pages", ">= 209", group: :jekyll_plugins
 
 group :test do
-  gem "html-proofer", ">= 3.16.0"
+  gem "html-proofer", ">= 3.19.3"
   gem "rake"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 4a04f85097c..44f6c487f65 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -21,8 +21,8 @@ GEM
     em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    ethon (0.12.0)
-      ffi (>= 1.3.0)
+    ethon (0.16.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
     faraday (1.3.0)
@@ -30,7 +30,7 @@ GEM
       multipart-post (>= 1.2, < 3)
       ruby2_keywords
     faraday-net_http (1.0.1)
-    ffi (1.14.2)
+    ffi (1.17.1)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     github-pages (211)
@@ -86,14 +86,15 @@ GEM
     html-pipeline (2.14.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (3.18.2)
+    html-proofer (4.4.3)
       addressable (~> 2.3)
       mercenary (~> 0.3)
-      nokogumbo (~> 2.0)
-      parallel (~> 1.3)
+      nokogiri (~> 1.13)
+      parallel (~> 1.10)
       rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
@@ -212,25 +213,25 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.8)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.14.3)
     multipart-post (2.1.1)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
-    nokogumbo (2.0.4)
-      nokogiri (~> 1.8, >= 1.8.4)
+    nokogiri (1.15.7)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
     octokit (4.20.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
-    parallel (1.20.1)
+    parallel (1.26.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (3.1.1)
-    rainbow (3.0.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
     rake (13.0.1)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
@@ -255,7 +256,7 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
-    typhoeus (1.4.0)
+    typhoeus (1.4.1)
       ethon (>= 0.9.0)
     tzinfo (1.2.9)
       thread_safe (~> 0.1)
@@ -264,13 +265,14 @@ GEM
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
     yell (2.2.2)
+    zeitwerk (2.6.18)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   github-pages (>= 209)
-  html-proofer (>= 3.16.0)
+  html-proofer (>= 3.19.3)
   rake
 
 BUNDLED WITH