diff --git a/tarpon.gemspec b/tarpon.gemspec
index 22ebc02..1000cab 100644
--- a/tarpon.gemspec
+++ b/tarpon.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.7'
 
-  spec.add_dependency 'http', '~> 4.4'
+  spec.add_dependency 'http', '>= 4.4', '< 6.0'
 
   spec.add_development_dependency 'factory_bot', '~> 6.2' # rubocop:disable Gemspec/DevelopmentDependencies
   spec.add_development_dependency 'rake', '~> 13.0' # rubocop:disable Gemspec/DevelopmentDependencies