diff --git a/Gemfile b/Gemfile
index cff68b89..cf734392 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,7 +17,7 @@ gem "github-pages", group: :jekyll_plugins
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
 # and associated library.
 install_if -> { RUBY_PLATFORM =~ %r!mingw|mswin|java! } do
-  gem "tzinfo", "~> 1.2"
+  gem "tzinfo", "~> 2.0"
   gem "tzinfo-data"
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 3c5ee1d2..d65b87dc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,14 +1,21 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.6.1)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-      zeitwerk (~> 2.2, >= 2.2.2)
+    activesupport (7.2.1)
+      base64
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -16,9 +23,11 @@ GEM
     colorator (1.1.0)
     commonmarker (0.23.10)
     concurrent-ruby (1.3.4)
+    connection_pool (2.4.1)
     csv (3.3.0)
     dnsruby (1.72.2)
       simpleidn (~> 0.2.1)
+    drb (2.2.1)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
@@ -244,29 +253,28 @@ GEM
     sawyer (0.9.2)
       addressable (>= 2.3.5)
       faraday (>= 0.17.3, < 3)
+    securerandom (0.3.1)
     simpleidn (0.2.3)
     strscan (3.1.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
-    thread_safe (0.3.6)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
-    tzinfo (1.2.10)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
     tzinfo-data (1.2024.1)
       tzinfo (>= 1.0.0)
     unicode-display_width (1.8.0)
     uri (0.13.1)
     wdm (0.2.0)
     webrick (1.8.1)
-    zeitwerk (2.6.17)
 
 PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
   github-pages
-  tzinfo (~> 1.2)
+  tzinfo (~> 2.0)
   tzinfo-data
   wdm (~> 0.2.0)