diff --git a/sendgrid-ruby.gemspec b/sendgrid-ruby.gemspec
index 63124049..844afb17 100644
--- a/sendgrid-ruby.gemspec
+++ b/sendgrid-ruby.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(/^bin/) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(/^(test|spec|features)/)
   spec.require_paths = ['lib']
-  spec.add_dependency 'ruby_http_client', '~> 3.2'
+  spec.add_dependency 'ruby_http_client', '~> 3.3.0'
   spec.add_dependency 'sinatra', '>= 1.4.7', '< 3'
   spec.add_development_dependency 'rake', '~> 0'
   spec.add_development_dependency 'rspec'