tork.gemspec in tork-19.11.1 vs tork.gemspec in tork-20.0.0

@@ -19,12 +19,12 @@
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ['lib']
 
   s.files += Dir['man/man?/*.?']            # UNIX man pages
   s.files += Dir['man/**/*.{html,css,js}']  # HTML man pages
-  s.add_development_dependency 'md2man', '~> 3.0'
+  s.add_development_dependency 'md2man', '~> 4.0'
 
-  s.add_runtime_dependency 'binman', '~> 3.0'
+  s.add_runtime_dependency 'binman', '~> 4.0'
   s.add_runtime_dependency 'json', '~> 1.6'
   s.add_runtime_dependency 'listen', '~> 1.0'
   s.add_runtime_dependency 'diff-lcs', '~> 1.1'
   s.add_development_dependency 'rake', '~> 10.0'
 end