diff --git a/Gemfile b/Gemfile
index cf0d937e8c..deaf2f28d0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 ruby '~> 2.7'
 
-gem 'jekyll', '~> 4.2.0', group: :jekyll_plugins
+gem 'jekyll', '~> 4.3.1', group: :jekyll_plugins
 gem 'jemoji'
 
 # Necessary to prevent Jekyll errors. See https://github.com/github/personal-website/issues/166
diff --git a/Gemfile.lock b/Gemfile.lock
index 1db2fbecb2..5014d6b897 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,10 +14,10 @@ GEM
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.1.10)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
@@ -46,23 +46,24 @@ GEM
       html-proofer (~> 3.0, >= 3.15.1)
     htmlentities (4.3.4)
     http_parser.rb (0.8.0)
-    i18n (1.10.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    jekyll (4.2.2)
+    jekyll (4.3.1)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
       i18n (~> 1.0)
-      jekyll-sass-converter (~> 2.0)
+      jekyll-sass-converter (>= 2.0, < 4.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.3)
+      kramdown (~> 2.3, >= 2.3.1)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.4.0)
+      mercenary (>= 0.3.6, < 0.5)
       pathutil (~> 0.9)
-      rouge (~> 3.0)
+      rouge (>= 3.0, < 5.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 2.0)
+      terminal-table (>= 1.8, < 4.0)
+      webrick (~> 1.7)
     jekyll-contentblocks (1.2.0)
       jekyll
     jekyll-material-icon-tag (1.1.1)
@@ -103,15 +104,15 @@ GEM
     parallel (1.22.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.7)
+    public_suffix (5.0.0)
     racc (1.6.0)
     rainbow (3.1.1)
     rake (13.0.6)
-    rb-fsevent (0.11.1)
+    rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.5)
-    rouge (3.28.0)
+    rouge (4.0.0)
     ruby2_keywords (0.0.5)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -133,13 +134,14 @@ GEM
       nokogiri (~> 1.11)
       rake (~> 13.0)
       sass (~> 3, >= 3.7)
-    terminal-table (2.0.0)
-      unicode-display_width (~> 1.1, >= 1.1.1)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (1.8.0)
+    unicode-display_width (2.3.0)
+    webrick (1.7.0)
     yell (2.2.2)
 
 PLATFORMS
@@ -151,7 +153,7 @@ DEPENDENCIES
   faraday (~> 2.3.0)
   html-proofer
   html-proofer-unrendered-markdown
-  jekyll (~> 4.2.0)
+  jekyll (~> 4.3.1)
   jekyll-material-icon-tag
   jekyll-redirect-from
   jemoji