powerpoint.gemspec in powerpoint-1.4 vs powerpoint.gemspec in powerpoint-1.5

@@ -22,7 +22,7 @@
 
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"
   spec.add_development_dependency 'rspec', '~> 2.13.0'
 
-  spec.add_dependency 'rubyzip', '~> 1.0.0'  
+  spec.add_dependency 'rubyzip', '~> 1'  
 end