diff --git a/lib/rspec/openapi/minitest_hooks.rb b/lib/rspec/openapi/minitest_hooks.rb
index 73dda98..19fc873 100644
--- a/lib/rspec/openapi/minitest_hooks.rb
+++ b/lib/rspec/openapi/minitest_hooks.rb
@@ -10,7 +10,7 @@ def run(*args)
       result = super
       if ENV['OPENAPI'] && self.class.openapi?
         file_path = method(name).source_location.first
-        human_name = name.sub(/^test_/, '').gsub(/_/, ' ')
+        human_name = name.sub(/^test_/, '').gsub('_', ' ')
         example = Example.new(self, human_name, {}, file_path)
         path = RSpec::OpenAPI.path.yield_self { |p| p.is_a?(Proc) ? p.call(example) : p }
         record = RSpec::OpenAPI::RecordBuilder.build(self, example: example)
diff --git a/lib/rspec/openapi/record_builder.rb b/lib/rspec/openapi/record_builder.rb
index 64b83d2..3f7348c 100644
--- a/lib/rspec/openapi/record_builder.rb
+++ b/lib/rspec/openapi/record_builder.rb
@@ -48,7 +48,7 @@ def safe_parse_body(response)
 
   def extract_headers(request, response)
     request_headers = RSpec::OpenAPI.request_headers.each_with_object([]) do |header, headers_arr|
-      header_key = header.gsub(/-/, '_').upcase
+      header_key = header.gsub('-', '_').upcase
       header_value = request.get_header(['HTTP', header_key].join('_')) || request.get_header(header_key)
       headers_arr << [header, header_value] if header_value
     end