mandrill-rails.gemspec in mandrill-rails-1.4.1 vs mandrill-rails.gemspec in mandrill-rails-1.5.0

@@ -14,15 +14,13 @@
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.name          = "mandrill-rails"
   spec.require_paths = ["lib"]
   spec.version       = Mandrill::Rails::VERSION
 
-  spec.add_runtime_dependency "activesupport", ">= 3.0.3"
+  spec.add_runtime_dependency "activesupport", ">= 4"
 
-  spec.add_development_dependency "bundler", "~> 1.7"
+  spec.add_development_dependency "bundler", "~> 1.14"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "generator_spec", "~> 0.9"
-  spec.add_development_dependency "guard-rspec", "~> 4.5"
-  spec.add_development_dependency "rdoc"
-
+  spec.add_development_dependency "guard-rspec", "~> 4.7"
 end