diff --git a/Gemfile b/Gemfile
index 7353afda..948de04b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "jekyll", "~> 4.2.2"
+gem "jekyll", "~> 4.3.1"
 gem 'jekyll-seo-tag' # check out this https://jekyll.github.io/jekyll-seo-tag/usage/
 
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
diff --git a/Gemfile.lock b/Gemfile.lock
index b8bda348..eee93de3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,10 +1,10 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    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)
@@ -25,23 +25,24 @@ GEM
       yell (~> 2.0)
       zeitwerk (~> 2.5)
     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-category-pages (1.1.2)
       jekyll (~> 4.0)
       jekyll-paginate (~> 1.1, >= 1.0.0)
@@ -54,7 +55,7 @@ GEM
       jekyll (>= 3.8, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (2.3.1)
+    kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
@@ -67,34 +68,32 @@ GEM
     nokogiri (1.13.8)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.8-x64-mingw32)
-      racc (~> 1.4)
     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)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
     sassc (2.4.0-x64-mingw32)
       ffi (~> 1.9)
-    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 (2.0.2)
       concurrent-ruby (~> 1.0)
     tzinfo-data (1.2020.2)
       tzinfo (>= 1.0.0)
-    unicode-display_width (1.8.0)
+    unicode-display_width (2.3.0)
     webrick (1.7.0)
     yell (2.2.2)
     zeitwerk (2.6.0)
@@ -105,7 +104,7 @@ PLATFORMS
 
 DEPENDENCIES
   html-proofer
-  jekyll (~> 4.2.2)
+  jekyll (~> 4.3.1)
   jekyll-category-pages
   jekyll-feed
   jekyll-paginate