diff --git a/.env b/.env
new file mode 100644
index 000000000..843558d3f
--- /dev/null
+++ b/.env
@@ -0,0 +1,2 @@
+STRIPE_TEST_SECRET_KEY=sk_test_eFvAvN5rz4GqAbsWxg63Jx79
+STRIPE_TEST_OAUTH_ACCESS_TOKEN=sk_test_WnZmEBIHhMcDltNe98sqWN7z
\ No newline at end of file
diff --git a/README.md b/README.md
index ce7021964..3d9e54313 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ This gem has unexpectedly grown in popularity and I've gotten pretty busy, so I'
 
 In your gemfile:
 
-    gem 'stripe-ruby-mock', '~> 2.4.0', :require => 'stripe_mock'
+    gem 'stripe-ruby-mock', '~> 2.4.1', :require => 'stripe_mock'
 
 ## Features
 
diff --git a/stripe-ruby-mock.gemspec b/stripe-ruby-mock.gemspec
index fc9c0ae9f..770403ddf 100644
--- a/stripe-ruby-mock.gemspec
+++ b/stripe-ruby-mock.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ['lib']
 
-  gem.add_dependency 'stripe', '~> 1.31'
+  gem.add_dependency 'stripe', ['>= 1.31.0', '<= 1.58.0']
   gem.add_dependency 'multi_json', '~> 1.0'
   gem.add_dependency 'dante', '>= 0.2.0'