diff --git a/Library/.rubocop.yml b/Library/.rubocop.yml
index 66674395f5..e06749fd4d 100644
--- a/Library/.rubocop.yml
+++ b/Library/.rubocop.yml
@@ -12,7 +12,7 @@ inherit_mode:
     - Exclude
 
 AllCops:
-  TargetRubyVersion: 3.1
+  TargetRubyVersion: 3.3
   NewCops: enable
   Include:
     - "**/*.rbi"