.rubocop.yml in regio-0.3.3 vs .rubocop.yml in regio-0.3.4

@@ -3,10 +3,10 @@
   - rubocop-performance
 
 AllCops:
   NewCops: enable
   SuggestExtensions: false
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 2.4
 
 RSpec/NestedGroups:
   Enabled: true
   Max: 5