diff --git a/ruby_powerpoint.gemspec b/ruby_powerpoint.gemspec
index 7ab541f..1473372 100644
--- a/ruby_powerpoint.gemspec
+++ b/ruby_powerpoint.gemspec
@@ -25,5 +25,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rspec', '~> 3'
 
   spec.add_dependency 'nokogiri', '~> 1.6'
-  spec.add_dependency 'rubyzip', '~> 1.0'
+  spec.add_dependency 'rubyzip', '~> 2.0'
 end