dry-struct.gemspec in dry-struct-0.2.1 vs dry-struct.gemspec in dry-struct-0.3.0

@@ -1,7 +1,5 @@
-# coding: utf-8
-
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'dry/struct/version'
 
 Gem::Specification.new do |spec|
@@ -29,11 +27,13 @@
   spec.require_paths = ['lib']
 
   spec.add_runtime_dependency 'dry-equalizer', '~> 0.2'
   spec.add_runtime_dependency 'dry-configurable', '~> 0.1'
   spec.add_runtime_dependency 'dry-types', '~> 0.9', '>= 0.9.0'
+  spec.add_runtime_dependency 'dry-core', '~> 0.3'
   spec.add_runtime_dependency 'ice_nine', '~> 0.11'
 
   spec.add_development_dependency 'bundler', '~> 1.6'
   spec.add_development_dependency 'rake', '~> 11.0'
   spec.add_development_dependency 'rspec', '~> 3.3'
+  spec.add_development_dependency 'yard', '~> 0.9.5'
 end