diff --git a/.simplecov b/.simplecov
index 71e854ca..b5e52a6c 100644
--- a/.simplecov
+++ b/.simplecov
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 
 if ENV['GITHUB_ACTION']
   require 'simplecov-lcov'
@@ -15,4 +16,4 @@ SimpleCov.start do
 
   add_filter '/spec/'
   add_filter 'helper'
-end
\ No newline at end of file
+end