diff --git a/.rubocop.yml b/.rubocop.yml
index e2ad80e2..eb06e18b 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -10,7 +10,7 @@ Performance:
   Enabled: true
 
 AllCops:
-  TargetRubyVersion: 2.4
+  TargetRubyVersion: 2.5
   NewCops: disable
   Exclude:
     - 'vendor/bundle/**/*'