diff --git a/Gemfile b/Gemfile
index fe095fbc..5e62100f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,7 @@ group :jekyll_plugins do
 end
 
 gem 'sinatra', '2.0.8.1'
-gem 'nokogiri', '1.10.8'
+gem 'nokogiri', '1.13.9'
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
 # and associated library
diff --git a/Gemfile.lock b/Gemfile.lock
index 1391e099..954fb2f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,8 +5,7 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     chunky_png (1.3.11)
     colorator (1.1.0)
-    commonmarker (0.20.1)
-      ruby-enum (~> 0.5)
+    commonmarker (0.23.6)
     compass (1.0.3)
       chunky_png (~> 1.2)
       compass-core (~> 1.0.2)
@@ -25,8 +24,8 @@ GEM
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
-    ffi (1.11.2)
-    ffi (1.11.2-x64-mingw32)
+    ffi (1.15.5)
+    ffi (1.15.5-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
     i18n (1.7.0)
@@ -52,7 +51,7 @@ GEM
     jekyll-paginate (1.1.0)
     jekyll-redirect-from (0.15.0)
       jekyll (>= 3.3, < 5.0)
-    jekyll-sass-converter (2.0.1)
+    jekyll-sass-converter (2.2.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
@@ -65,40 +64,38 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.2.0)
+    listen (3.7.1)
       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 (2.8.0)
     multi_json (1.14.1)
     mustermann (1.1.0)
       ruby2_keywords (~> 0.0.1)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.8-x64-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.1)
+    racc (1.6.0)
     rack (2.2.3)
     rack-protection (2.0.8.1)
       rack
     rake (13.0.1)
     rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
+    rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.4)
     rouge (3.13.0)
-    ruby-enum (0.7.2)
-      i18n
     ruby2_keywords (0.0.1)
     safe_yaml (1.0.5)
     sass (3.4.25)
     sass-globbing (1.1.5)
       sass (>= 3.1)
-    sassc (2.2.1)
+    sassc (2.4.0)
       ffi (~> 1.9)
-    sassc (2.2.1-x64-mingw32)
+    sassc (2.4.0-x64-mingw32)
       ffi (~> 1.9)
     sinatra (2.0.8.1)
       mustermann (~> 1.0)
@@ -109,9 +106,9 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     tilt (2.0.10)
-    tzinfo (2.0.1)
+    tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
-    tzinfo-data (1.2019.3)
+    tzinfo-data (1.2022.5)
       tzinfo (>= 1.0.0)
     unicode-display_width (1.6.0)
 
@@ -127,7 +124,7 @@ DEPENDENCIES
   jekyll-redirect-from (= 0.15.0)
   jekyll-sitemap (= 1.4.0)
   jekyll-time-to-read (= 0.1.2)
-  nokogiri (= 1.10.8)
+  nokogiri (= 1.13.9)
   rake (= 13.0.1)
   sass-globbing (= 1.1.5)
   sinatra (= 2.0.8.1)