diff --git a/kubernetes/kubernetes.gemspec b/kubernetes/kubernetes.gemspec
index 00fea0f9..3c71dd1f 100644
--- a/kubernetes/kubernetes.gemspec
+++ b/kubernetes/kubernetes.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.required_ruby_version = ">= 1.9"
 
   s.add_runtime_dependency 'typhoeus', '~> 1.0', '>= 1.0.1'
-  s.add_runtime_dependency 'json', '~> 2.1', '>= 2.1.0'
+  s.add_runtime_dependency 'json', '~> 1.8', '>= 1.8.6'
 
   s.add_development_dependency 'rspec', '~> 3.6', '>= 3.6.0'
   s.add_development_dependency 'vcr', '~> 3.0', '>= 3.0.1'