Update Ruby version to 2.5 for Rubocop

Ruby 2.2 reached EOL on 2018-03-31 (#1), so we decided to migrate to the latest stable version.
alphagov · May 31, 2018 · a8504f8 · a8504f8
1 parent 39745d0
commit a8504f8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.rubocop.yml b/.rubocop.yml
@@ -2,7 +2,7 @@ AllCops:
   Exclude:
     - 'vendor/**/*'
     - 'scripts/vendor/**/*'
-  TargetRubyVersion: 2.2
+  TargetRubyVersion: 2.5
 Metrics/BlockLength:
   # FIXME: Remove when upstream PR is released:
   # https://github.com/alphagov/govuk-lint/pull/87