diff --git a/.rubocop.yml b/.rubocop.yml
index 75df1173..a18ed3dc 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -4,6 +4,6 @@
 inherit_gem: { rubocop-rails-omakase: rubocop.yml }
 
 AllCops:
-  TargetRubyVersion: 3.3
+  TargetRubyVersion: 3.4
   Exclude:
     - "**/*_schema.rb"
diff --git a/.ruby-version b/.ruby-version
index fa7adc7a..18091983 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.5
+3.4.0