diff --git a/html-pipeline.gemspec b/html-pipeline.gemspec
index ec1b5225..c8425b6f 100644
--- a/html-pipeline.gemspec
+++ b/html-pipeline.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |gem|
gem.test_files = gem.files.grep(%r{^test})
gem.require_paths = ["lib"]
- gem.add_dependency "nokogiri", [">= 1.4", "<= 1.6.5"]
+ gem.add_dependency "nokogiri", ">= 1.4"
gem.add_dependency "activesupport", [">= 2", "< 5"]
gem.post_install_message = <