hermod.gemspec in hermod-2.4.1 vs hermod.gemspec in hermod-2.5.0

@@ -23,10 +23,10 @@
   spec.required_ruby_version = ">= 2.0.0"
 
   spec.add_runtime_dependency "libxml-ruby", "~> 2.7", ">= 2.7.0"
   spec.add_runtime_dependency "activesupport", "> 3.2", "< 6"
 
-  spec.add_development_dependency "bundler", "~> 1.6"
+  spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "rake", "~> 11.1"
   spec.add_development_dependency "minitest", "~> 5.3"
   spec.add_development_dependency "minitest-reporters", "~> 1.0", ">= 1.0.16"
   spec.add_development_dependency "nokogiri", "~> 1.5"
 end