diff --git a/Gemfile b/Gemfile
index f8c8d3ef..88d9a10e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source "https://rubygems.org"
-ruby "3.1.1"
+ruby "3.3.5"
 
 gem "jekyll", ">= 4.2.0"
 gem "html-proofer", ">= 3.10.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index 99030b42..1ed1a748 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -121,7 +121,7 @@ DEPENDENCIES
   webrick (~> 1.8)
 
 RUBY VERSION
-   ruby 3.1.1p18
+   ruby 3.3.5p100
 
 BUNDLED WITH
    2.4.21