omml2mathml.gemspec in omml2mathml-0.0.5 vs omml2mathml.gemspec in omml2mathml-0.0.6

@@ -19,12 +19,12 @@
 
   spec.bindir        = "bin"
   spec.require_paths = ["lib"]
   spec.files         = `git ls-files`.split("\n")
   spec.test_files    = `git ls-files -- {spec}/*`.split("\n")
-  spec.required_ruby_version = Gem::Requirement.new(">= 2.3.0")
+  spec.required_ruby_version = Gem::Requirement.new(">= 2.4.0")
 
-  spec.add_dependency "nokogiri"
+  spec.add_dependency "nokogiri", ">= 1.10.4"
 
   spec.add_development_dependency "bundler", "~> 2.0.1"
   spec.add_development_dependency "byebug", "~> 9.1"
   spec.add_development_dependency "equivalent-xml", "~> 0.6"
   spec.add_development_dependency "guard", "~> 2.14"