diff --git a/Gemfile b/Gemfile
index e0dcd80c0..01feb1f69 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 
 gem 'github-pages'
-gem 'html-proofer'
+gem 'html-proofer', '>= 3.19.3'
 gem 'rack-contrib', '~> 1.1.0'
 gem 'rake'
-gem 'jekyll-octicons'
+gem 'jekyll-octicons', '>= 14.2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2bb9dd851..4054550d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
-    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
@@ -16,14 +16,14 @@ GEM
     colorator (1.1.0)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
-    concurrent-ruby (1.1.8)
+    concurrent-ruby (1.3.5)
     dnsruby (1.61.5)
       simpleidn (~> 0.1)
-    em-websocket (0.5.2)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
-    ethon (0.12.0)
-      ffi (>= 1.3.0)
+      http_parser.rb (~> 0)
+    ethon (0.16.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
     faraday (1.3.0)
@@ -31,7 +31,7 @@ GEM
       multipart-post (>= 1.2, < 3)
       ruby2_keywords
     faraday-net_http (1.0.1)
-    ffi (1.15.0)
+    ffi (1.17.1)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     github-pages (214)
@@ -87,15 +87,15 @@ GEM
     html-pipeline (2.14.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (3.15.0)
+    html-proofer (3.19.4)
       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)
-    http_parser.rb (0.6.0)
+    http_parser.rb (0.8.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     jekyll (3.9.0)
@@ -135,9 +135,9 @@ GEM
     jekyll-mentions (1.6.0)
       html-pipeline (~> 2.3)
       jekyll (>= 3.7, < 5.0)
-    jekyll-octicons (9.3.1)
+    jekyll-octicons (19.8.0)
       jekyll (>= 3.6, < 5.0)
-      octicons (= 9.3.1)
+      octicons (= 19.8.0)
     jekyll-optional-front-matter (0.3.2)
       jekyll (>= 3.0, < 5.0)
     jekyll-paginate (1.1.0)
@@ -212,41 +212,38 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.5.1)
+    listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.5.0)
+    mini_portile2 (2.8.8)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.14.4)
     multipart-post (2.1.1)
-    nokogiri (1.11.2)
-      mini_portile2 (~> 2.5.0)
+    nokogiri (1.15.7)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogumbo (2.0.2)
-      nokogiri (~> 1.8, >= 1.8.4)
-    octicons (9.3.1)
-      nokogiri (>= 1.6.3.1)
+    octicons (19.8.0)
     octokit (4.20.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
-    parallel (1.19.1)
+    parallel (1.26.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
-    racc (1.5.2)
+    public_suffix (4.0.7)
+    racc (1.8.1)
     rack (2.2.3)
     rack-contrib (1.1.0)
       rack (>= 0.9.1)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (13.0.1)
-    rb-fsevent (0.10.4)
-    rb-inotify (0.10.1)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.4.1)
     rouge (3.26.0)
     ruby-enum (0.9.0)
       i18n
@@ -266,7 +263,7 @@ 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)
@@ -274,7 +271,7 @@ GEM
       unf_ext
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
-    yell (2.2.0)
+    yell (2.2.2)
     zeitwerk (2.4.2)
 
 PLATFORMS
@@ -282,10 +279,10 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
-  html-proofer
-  jekyll-octicons
+  html-proofer (>= 3.19.3)
+  jekyll-octicons (>= 14.2.0)
   rack-contrib (~> 1.1.0)
   rake
 
 BUNDLED WITH
-   2.2.9
+   2.1.4