diff --git a/http.gemspec b/http.gemspec
index 317a9741..bfef1e8b 100644
--- a/http.gemspec
+++ b/http.gemspec
@@ -29,8 +29,8 @@ Gem::Specification.new do |gem|
 
   gem.add_runtime_dependency "addressable",    "~> 2.3"
   gem.add_runtime_dependency "http-cookie",    "~> 1.0"
-  gem.add_runtime_dependency "http-form_data", "~> 2.0"
-  gem.add_runtime_dependency "http-parser",    "~> 2.2.0"
+  gem.add_runtime_dependency "http-form_data", "~> 2.2"
+  gem.add_runtime_dependency "http-parser",    "~> 1.2.0"
 
   gem.add_development_dependency "bundler", "~> 2.0"