diff --git a/.rubocop.yml b/.rubocop.yml
index 95ad848..b0d8dba 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -15,3 +15,8 @@ Layout/LineLength:
 
 RSpec/MultipleMemoizedHelpers:
   Max: 15
+
+Style/OneClassPerFile:
+  Exclude:
+    - scripts/**/*
+    - spec/**/*
diff --git a/Gemfile b/Gemfile
index e05b95d..d0d85d9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem 'rspec-rails'
 gem 'simplecov', require: false
 gem 'simplecov-cobertura', require: false
 
-gem 'rubocop-config', github: 'jgraichen/rubocop-config', tag: 'v14', require: false
+gem 'rubocop-config', github: 'jgraichen/rubocop-config', tag: 'v15', require: false
 
 gem 'rails'
 gem 'sqlite3'