diff --git a/dropbox-sdk-v2.gemspec b/dropbox-sdk-v2.gemspec
index 089d253..8503aeb 100644
--- a/dropbox-sdk-v2.gemspec
+++ b/dropbox-sdk-v2.gemspec
@@ -12,5 +12,5 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 2.1.0'
   s.add_development_dependency 'minitest', '~> 5.9'
   s.add_development_dependency 'webmock', '~> 2.1'
-  s.add_runtime_dependency 'http', '~> 2.0'
+  s.add_runtime_dependency 'http', '>= 2.0'
 end