activefedora-aggregation.gemspec in activefedora-aggregation-0.5.0 vs activefedora-aggregation.gemspec in activefedora-aggregation-0.6.0

@@ -17,12 +17,12 @@
   spec.require_paths = ["lib"]
 
   spec.add_dependency 'activesupport'
   spec.add_dependency 'active-fedora', '~> 9.5'
   spec.add_dependency 'rdf-vocab', '~> 0.8.1'
-  # Lock to RDF 1.1.16 because 1.1.17 causes a bug from ruby 2.2
+  # Avoid RDF 1.1.17 because of a bug from ruby 2.2
   # https://github.com/ruby-rdf/rdf/pull/213
-  spec.add_dependency 'rdf', '~>1.1.16.0'
+  spec.add_dependency 'rdf', '~> 1.1', '>= 1.1.17.1'
 
   spec.add_development_dependency "bundler", "~> 1.8"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.2"
   spec.add_development_dependency "jettywrapper"