.rubocop.yml in rack-simple_user_agent-0.5.0 vs .rubocop.yml in rack-simple_user_agent-0.6.0

- old
+ new

@@ -1,9 +1,9 @@
 inherit_from: .rubocop_todo.yml
 
 require: rubocop-minitest
 
 AllCops:
-  TargetRubyVersion: 2.3
+  TargetRubyVersion: 2.4
 
 Layout/LineLength:
   Enabled: false