diff --git a/lib/openapi_contracts.rb b/lib/openapi_contracts.rb
index 282380f..3ca7b12 100644
--- a/lib/openapi_contracts.rb
+++ b/lib/openapi_contracts.rb
@@ -21,12 +21,10 @@ module OpenapiContracts
   autoload :PayloadParser,   'openapi_contracts/payload_parser'
   autoload :Validators,      'openapi_contracts/validators'
 
-  include ActiveSupport::Configurable
+  mattr_accessor :collect_coverage, default: false
 
   Env = Struct.new(:operation, :options, :request, :response, keyword_init: true)
 
-  config_accessor(:collect_coverage) { false }
-
   module_function
 
   def match(doc, response, options = {})