diff --git a/.rubocop_gradual.lock b/.rubocop_gradual.lock
index ef53e624..1e975eef 100644
--- a/.rubocop_gradual.lock
+++ b/.rubocop_gradual.lock
@@ -3,7 +3,7 @@
     [66, 5, 20, "ThreadSafety/ClassInstanceVariable: Avoid class instance variables.", 2485198147],
     [78, 5, 74, "Style/InvertibleUnlessCondition: Prefer `if Gem.rubygems_version >= Gem::Version.new(\"2.7.0\")` over `unless Gem.rubygems_version < Gem::Version.new(\"2.7.0\")`.", 2453573257]
   ],
-  "lib/oauth2.rb:4176768025": [
+  "lib/oauth2.rb:65351186": [
     [38, 11, 7, "ThreadSafety/ClassInstanceVariable: Avoid class instance variables.", 651502127]
   ],
   "lib/oauth2/access_token.rb:3471244990": [
diff --git a/Gemfile.lock b/Gemfile.lock
index 70d14049..f8762a9b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -275,6 +275,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-21
+  x86_64-darwin-23
   x86_64-linux
 
 DEPENDENCIES
diff --git a/lib/oauth2.rb b/lib/oauth2.rb
index 86baef76..d8e4cfa3 100644
--- a/lib/oauth2.rb
+++ b/lib/oauth2.rb
@@ -9,19 +9,19 @@
 require "version_gem"
 
 # includes gem files
-require "oauth2/version"
-require "oauth2/filtered_attributes"
-require "oauth2/error"
-require "oauth2/authenticator"
-require "oauth2/client"
-require "oauth2/strategy/base"
-require "oauth2/strategy/auth_code"
-require "oauth2/strategy/implicit"
-require "oauth2/strategy/password"
-require "oauth2/strategy/client_credentials"
-require "oauth2/strategy/assertion"
-require "oauth2/access_token"
-require "oauth2/response"
+require_relative "oauth2/version"
+require_relative "oauth2/filtered_attributes"
+require_relative "oauth2/error"
+require_relative "oauth2/authenticator"
+require_relative "oauth2/client"
+require_relative "oauth2/strategy/base"
+require_relative "oauth2/strategy/auth_code"
+require_relative "oauth2/strategy/implicit"
+require_relative "oauth2/strategy/password"
+require_relative "oauth2/strategy/client_credentials"
+require_relative "oauth2/strategy/assertion"
+require_relative "oauth2/access_token"
+require_relative "oauth2/response"
 
 # The namespace of this library
 module OAuth2