sup.gemspec in sup-0.20.0 vs sup.gemspec in sup-0.21.0

@@ -36,11 +36,11 @@
   s.executables   = s.files.grep(%r{^bin/}) { |f| File.basename(f) }
   s.test_files    = s.files.grep(%r{^(test|spec|features)/})
   s.require_paths = ["lib"]
   s.extra_rdoc_files = Dir.glob("man/*")
 
-  s.required_ruby_version = '>= 1.9.3'
+  s.required_ruby_version = '>= 2.0.0'
 
   # this is here to support skipping the xapian-ruby installation on OpenBSD
   # because the xapian-ruby gem doesn't install on OpenBSD, you must install
   # xapian-core and xapian-bindings manually on OpenBSD
   # see https://github.com/sup-heliotrope/sup/wiki/Installation%3A-OpenBSD
@@ -60,10 +60,11 @@
   s.add_runtime_dependency "chronic", "~> 0.9.1"
   s.add_runtime_dependency "unicode", "~> 0.4.4"
 
   s.add_development_dependency "bundler", "~> 1.3"
   s.add_development_dependency "rake"
-  s.add_development_dependency "minitest", "~> 4.7"
-  s.add_development_dependency "rr", "~> 1.0.5"
+  s.add_development_dependency 'minitest', '~> 5.5.1'
+  s.add_development_dependency "rr", "~> 1.1"
   s.add_development_dependency "gpgme", ">= 2.0.2"
+  s.add_development_dependency "pry"
 
 end