diff --git a/.ruby-version b/.ruby-version
index 9c25013d..3b47f2e4 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.6
+3.3.9
diff --git a/.tool-versions b/.tool-versions
index b5991720..e0b52729 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-ruby 3.3.6
+ruby 3.3.9
 nodejs 19.6.0
diff --git a/Gemfile b/Gemfile
index b3bfaa19..520f7468 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby "3.3.6"
+ruby "3.3.9"
 
 gem "rails", "~> 7.1.2"
 gem "sqlite3"
diff --git a/Gemfile.lock b/Gemfile.lock
index 8aa94c13..65900e9a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -558,7 +558,7 @@ DEPENDENCIES
   webmock
 
 RUBY VERSION
-   ruby 3.3.6p108
+   ruby 3.3.9
 
 BUNDLED WITH
    2.4.7