.rubocop.yml in table_sync-2.2.0 vs .rubocop.yml in table_sync-2.3.0

@@ -1,9 +1,9 @@
 inherit_gem:
   rubocop-config-umbrellio: lib/rubocop.yml
 
 AllCops:
-  TargetRubyVersion: 2.3
+  TargetRubyVersion: 2.5
   Include:
     - bin/*
     - lib/**/*.rb
     - spec/**/*.rb
     - Gemfile