diff --git a/netconf.gemspec b/netconf.gemspec
index 5368eba..160554c 100644
--- a/netconf.gemspec
+++ b/netconf.gemspec
@@ -11,7 +11,7 @@ Gem::Specification.new do |s|
   s.authors = ["Jeremy Schulman", "Ankit Jain"]
   s.email = 'jschulman@juniper.net'
   s.files = FileList['lib/net/**/*.rb', 'examples/**/*.rb']
-  s.add_dependency('nokogiri', '>= 1.5.5')
+  s.add_dependency('nokogiri', '>= 1.6.4')
   s.add_dependency('net-ssh', '>= 2.5.2')
   s.add_dependency('net-scp')
 end