diff --git a/.rubocop.yml b/.rubocop.yml
index 8974291..1fe7ca9 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,6 +3,7 @@
 AllCops:
   TargetRubyVersion: 3.0
   NewCops: disable
+  SuggestExtensions: false
   Exclude:
     - "**/vendor/**/*" # For GitHub Actions, see rubocop/rubocop#9832
     - benchmarks/*.rb