diff --git a/.rubocop.yml b/.rubocop.yml
index ac0e2e0..35a78bd 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -9,7 +9,6 @@ plugins:
 
 AllCops:
   NewCops: enable
-  TargetRubyVersion: 3.3
   SuggestExtensions: false
   Exclude:
     - bin/*
diff --git a/.ruby-version b/.ruby-version
index 7921bd0..c5106e6 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.4.8
+4.0.4