diff --git a/chef-zero.gemspec b/chef-zero.gemspec
index 44c5d80..ba92f67 100644
--- a/chef-zero.gemspec
+++ b/chef-zero.gemspec
@@ -19,7 +19,6 @@ Gem::Specification.new do |s|
   s.add_dependency "ffi-yajl", ">= 2.2", "< 4.0"
   s.add_dependency "rack", "~> 3.1", ">= 3.1.16"
   s.add_dependency "rackup", "~> 2.2", ">= 2.2.1"
-  s.add_dependency "unf_ext", "~> 0.0.8"
   s.add_dependency "webrick"
 
   s.bindir       = "bin"