.rubocop.yml in dupler-0.1.0 vs .rubocop.yml in dupler-0.2.0

- old
+ new

@@ -1,6 +1,6 @@
 AllCops:
-  TargetRubyVersion: 2.4
+  TargetRubyVersion: 2.5
 
 Style/StringLiterals:
   Enabled: true
   EnforcedStyle: double_quotes
 