diff --git a/Gemfile b/Gemfile
index bad88eb..71958cb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,5 +7,5 @@ gem "github-pages", "~> 232", group: :jekyll_plugins
 gem "webrick"
 
 group :test do
-  gem "html-proofer", "~> 5.0"
+  gem "html-proofer", "~> 5.2"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 36dfa1f..496773a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,12 +18,10 @@ GEM
     addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
     afm (1.0.0)
-    async (2.39.0)
+    async (2.45.1)
       console (~> 1.29)
       fiber-annotation
-      io-event (~> 1.11)
-      metrics (~> 0.12)
-      traces (~> 0.18)
+      io-event (~> 1.21)
     base64 (0.3.0)
     benchmark (0.5.0)
     bigdecimal (4.1.2)
@@ -35,7 +33,7 @@ GEM
     commonmarker (0.23.12)
     concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
-    console (1.36.0)
+    console (1.37.0)
       fiber-annotation
       fiber-local (~> 1.1)
       json
@@ -129,7 +127,7 @@ GEM
     html-pipeline (2.14.3)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (5.2.1)
+    html-proofer (5.2.2)
       addressable (~> 2.3)
       async (~> 2.1)
       benchmark (~> 0.5)
@@ -142,7 +140,7 @@ GEM
     http_parser.rb (0.8.1)
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
-    io-event (1.16.1)
+    io-event (1.22.0)
     jekyll (3.10.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -253,7 +251,7 @@ GEM
       gemoji (>= 3, < 5)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
-    json (2.20.0)
+    json (3.0.2)
     kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)
@@ -265,7 +263,6 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
     mercenary (0.3.6)
-    metrics (0.15.0)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
@@ -296,11 +293,10 @@ GEM
       sawyer (~> 0.9)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    pdf-reader (2.15.1)
+    pdf-reader (2.16.0)
       Ascii85 (>= 1.0, < 3.0, != 2.0.0)
       afm (>= 0.2.1, < 2)
       hashery (~> 2.0)
-      ruby-rc4
       ttfunk
     prism (1.9.0)
     public_suffix (5.1.1)
@@ -311,7 +307,6 @@ GEM
       ffi (~> 1.0)
     rexml (3.4.4)
     rouge (3.30.0)
-    ruby-rc4 (0.1.5)
     rubyzip (2.4.1)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -326,7 +321,6 @@ GEM
     simpleidn (0.2.3)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
-    traces (0.18.2)
     ttfunk (1.7.0)
     typhoeus (1.6.0)
       ethon (>= 0.18.0)
@@ -336,7 +330,7 @@ GEM
     uri (1.1.1)
     webrick (1.9.2)
     yell (2.2.2)
-    zeitwerk (2.8.2)
+    zeitwerk (2.8.3)
 
 PLATFORMS
   aarch64-linux-gnu
@@ -350,7 +344,7 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages (~> 232)
-  html-proofer (~> 5.0)
+  html-proofer (~> 5.2)
   webrick
 
 BUNDLED WITH