diff --git a/docs/Gemfile b/docs/Gemfile
index b5761c5..e997926 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -22,7 +22,7 @@ end
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
 # and associated library.
 platforms :mingw, :x64_mingw, :mswin, :jruby do
-  gem "tzinfo", "~> 1.2"
+  gem "tzinfo", "~> 2.0"
   gem "tzinfo-data"
 end
 
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 5207831..943941d 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.5.1)
+    activesupport (7.2.3.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -251,7 +251,7 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.10)
+    tzinfo (2.0.6)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
@@ -268,7 +268,7 @@ DEPENDENCIES
   http_parser.rb (~> 0.6.0)
   jekyll-feed (~> 0.12)
   jekyll-target-blank
-  tzinfo (~> 1.2)
+  tzinfo (~> 2.0)
   tzinfo-data
   wdm (~> 0.1.1)