diff --git a/jekyll.gemspec b/jekyll.gemspec
index b29d9667b9f..8800fe24229 100644
--- a/jekyll.gemspec
+++ b/jekyll.gemspec
@@ -27,7 +27,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency('classifier', "~> 1.3")
   s.add_runtime_dependency('directory_watcher', "~> 1.4.1")
   s.add_runtime_dependency('maruku', "~> 0.5")
-  s.add_runtime_dependency('kramdown', "~> 1.0.2")
   s.add_runtime_dependency('pygments.rb', "~> 0.5.0")
   s.add_runtime_dependency('commander', "~> 4.1.3")
   s.add_runtime_dependency('safe_yaml', "~> 0.7.0")
@@ -41,6 +40,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency('rr', "~> 1.0.0")
   s.add_development_dependency('cucumber', "~> 1.2.1", '!= 1.2.4')
   s.add_development_dependency('RedCloth', "~> 4.2")
+  s.add_development_dependency('kramdown', "~> 1.0.2")
   s.add_development_dependency('rdiscount', "~> 1.6")
   s.add_development_dependency('launchy', "~> 2.1.2")
   s.add_development_dependency('simplecov', "~> 0.7")