diff --git a/.rubocop.yml b/.rubocop.yml
index 7e9941d1d..d44255479 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -179,6 +179,9 @@ Lint/EmptyFile:
 Lint/LiteralAsCondition:
   Enabled: true
 
+Lint/NonAtomicFileOperation:
+  Enabled: true
+
 Lint/ParenthesesAsGroupedExpression:
   Enabled: true
 
diff --git a/spec/lib/tasks/sitemap_spec.rb b/spec/lib/tasks/sitemap_spec.rb
index d72bb9061..dc2fa7edd 100644
--- a/spec/lib/tasks/sitemap_spec.rb
+++ b/spec/lib/tasks/sitemap_spec.rb
@@ -4,7 +4,7 @@ describe "rake sitemap:create", type: :system do
   let(:file) { Rails.root.join("public", "sitemap.xml") }
 
   before do
-    File.delete(file) if File.exist?(file)
+    FileUtils.rm_f(file)
     Rake::Task["sitemap:create"].reenable
   end