edtf.gemspec in edtf-2.3.1 vs edtf.gemspec in edtf-3.0.0

@@ -13,10 +13,10 @@
   s.homepage    = 'http://github.com/inukshuk/edtf-ruby'
   s.summary     = 'Extended Date/Time Format for Ruby.'
   s.description = 'A Ruby implementation of the Extended Date/Time Format (EDTF).'
   s.license     = 'BSD-2-Clause-FreeBSD'
 
-  s.add_runtime_dependency('activesupport', '>= 3.0', '< 5.0')
+  s.add_runtime_dependency('activesupport', '>= 3.0', '< 6.0')
 
   s.files        = `git ls-files`.split("\n") << 'lib/edtf/parser.rb'
   s.test_files   = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.executables  = []
   s.require_path = 'lib'