diff --git a/config/default.yml b/config/default.yml
index 46d32ff8..b5efdd32 100644
--- a/config/default.yml
+++ b/config/default.yml
@@ -1,6 +1,6 @@
 AllCops:
-  # Prevent RuboCop from exploding when it finds an older-than-2.6 .ruby-version
-  TargetRubyVersion: 2.6
+  # Prevent RuboCop from exploding when it finds an older .ruby-version
+  TargetRubyVersion: 3.0
   Exclude: []
   DisabledByDefault: true
   StyleGuideBaseURL: https://github.com/standardrb/standard