nexmos.gemspec in nexmos-0.2 vs nexmos.gemspec in nexmos-0.3

@@ -13,12 +13,12 @@
   gem.homepage      = "https://github.com/simonoff/nexmos"
   gem.files         = `git ls-files`.split($/)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
-  gem.add_dependency('rash')
+  gem.add_dependency('hashie', '>= 2.1.0')
   gem.add_dependency('faraday')
   gem.add_dependency('faraday_middleware')
-  gem.add_dependency('activesupport', '>= 3.0.0')
-  gem.add_development_dependency('rspec')
+  gem.add_dependency('activesupport', '>= 3.0', '<= 5.0')
+  gem.add_development_dependency('rspec', '>= 3.0')
   gem.add_development_dependency('webmock')
 end