snmp-open.gemspec in snmp-open-0.5.0 vs snmp-open.gemspec in snmp-open-0.6.0

@@ -1,6 +1,6 @@
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'snmp/open/version'
 
 Gem::Specification.new do |spec|
   spec.name          = 'snmp-open'
@@ -16,10 +16,10 @@
   end
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_development_dependency 'bundler', '~> 1.11'
-  spec.add_development_dependency 'rake', '~> 10.0'
+  spec.add_development_dependency 'bundler', '~> 2.2'
+  spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
   spec.add_development_dependency 'snmp'
 end