diff --git a/lib/ridley.rb b/lib/ridley.rb
index bae2fbf..12ea09c 100644
--- a/lib/ridley.rb
+++ b/lib/ridley.rb
@@ -1,6 +1,7 @@
 require 'addressable/uri'
 require 'celluloid'
 require 'celluloid/io'
+require 'celluloid/autostart'
 require 'faraday'
 require 'forwardable'
 require 'hashie'
diff --git a/ridley.gemspec b/ridley.gemspec
index 77c3157..d9ccdcf 100644
--- a/ridley.gemspec
+++ b/ridley.gemspec
@@ -23,8 +23,8 @@ Gem::Specification.new do |s|
   s.add_dependency 'buff-extensions',         '~> 2.0'
   s.add_dependency 'buff-ignore',             '~> 1.2'
   s.add_dependency 'buff-shell_out',          '~> 1.0'
-  s.add_dependency 'celluloid',               '~> 0.16.0'
-  s.add_dependency 'celluloid-io',            '~> 0.16.1'
+  s.add_dependency 'celluloid',               '>= 0.16.0'
+  s.add_dependency 'celluloid-io',            '>= 0.16.1'
   s.add_dependency 'chef-config',             '>= 12.5.0'
   s.add_dependency 'erubis'
   s.add_dependency 'faraday',                 '~> 0.9'