diff --git a/.ruby-version b/.ruby-version
index bea438e..3b47f2e 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.1
+3.3.9
diff --git a/Gemfile.lock b/Gemfile.lock
index 125d9a0..989cce8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -239,7 +239,7 @@ DEPENDENCIES
   rubocop-rake
 
 RUBY VERSION
-   ruby 3.3.1p55
+   ruby 3.3.9p170
 
 BUNDLED WITH
    2.5.3
diff --git a/mise.toml b/mise.toml
index 00775ac..0a61537 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,2 +1,2 @@
 [tools]
-ruby = '3.3.1'
+ruby = '3.3.9'