Rakefile in ruby_skynet-0.4.0.pre2 vs Rakefile in ruby_skynet-0.4.0

@@ -27,10 +27,9 @@
     spec.add_dependency 'semantic_logger'
     spec.add_dependency 'resilient_socket'
     spec.add_dependency 'multi_json', '>= 1.6.1'
     spec.add_dependency 'bson'
     spec.add_dependency 'ruby_protobuf'
-    spec.add_dependency 'celluloid-io', '>= 0.13.0.pre2'
   end
   Gem::Package.build gemspec
 end
 
 desc "Run Test Suite"