diff --git a/Html2Docx.gemspec b/Html2Docx.gemspec
index dbdb5d6..27c57e8 100644
--- a/Html2Docx.gemspec
+++ b/Html2Docx.gemspec
@@ -23,6 +23,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler', '~> 1.15'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
-  spec.add_development_dependency 'nokogiri', '~> 1.6', '>= 1.6.8'
-  spec.add_development_dependency 'rubyzip', '~> 1.2', '>= 1.2.0'
+  spec.add_runtime_dependency 'nokogiri', '~> 1.6', '>= 1.6.8'
+  spec.add_runtime_dependency 'rubyzip', '~> 1.2', '>= 1.2.0'
 end
diff --git a/lib/Html2Docx/version.rb b/lib/Html2Docx/version.rb
index df1d9fc..28ccea6 100644
--- a/lib/Html2Docx/version.rb
+++ b/lib/Html2Docx/version.rb
@@ -1,3 +1,3 @@
 module Html2Docx
-  VERSION = '0.2.0'
+  VERSION = '0.2.1'
 end
\ No newline at end of file