diff --git a/twitter.gemspec b/twitter.gemspec
index 3f568c96d..e2b0d6428 100644
--- a/twitter.gemspec
+++ b/twitter.gemspec
@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'buftok', '~> 0.2.0'
   spec.add_dependency 'equalizer', '0.0.10'
   spec.add_dependency 'faraday', '~> 0.9.0'
-  spec.add_dependency 'http', '~> 0.6.0'
+  spec.add_dependency 'http', ['>= 0.4', '< 0.9']
   spec.add_dependency 'http_parser.rb', '~> 0.6.0'
   spec.add_dependency 'json', '~> 1.8'
   spec.add_dependency 'memoizable', '~> 0.4.0'