chainpoint.gemspec in chainpoint-0.0.2 vs chainpoint.gemspec in chainpoint-0.0.3

@@ -13,9 +13,10 @@
   spec.summary       = "Chainpoint request library"
   #spec.description   = %q{TODO: Write a longer description or delete this line.}
   spec.homepage      = "https://github.com/KenjiOhtsuka/chainpoint_gem"
 
   spec.add_runtime_dependency "json"
+  spec.required_ruby_version = '>= 2.5.0'
 
   spec.license = 'GPL-3.0'
 
   spec.files         = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})