yoti.gemspec in yoti-1.3.1 vs yoti.gemspec in yoti-1.4.0

@@ -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 'yoti/version'
 
 Gem::Specification.new do |spec|
   spec.name          = 'yoti'
@@ -21,13 +21,13 @@
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features|examples)/}) }
   spec.require_paths = ['lib']
 
   spec.required_ruby_version = '>= 2.4'
 
+  spec.add_dependency 'google-protobuf', '~> 3.7.0'
   spec.add_dependency 'protobuf', '~> 3.6'
-  spec.add_dependency 'google-protobuf', '~> 3.6.1'
 
-  spec.add_development_dependency 'bundler', '~> 1.13'
+  spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'dotenv', '~> 2.2'
   spec.add_development_dependency 'generator_spec', '~> 0.9'
   spec.add_development_dependency 'rake', '~> 12.0'
   spec.add_development_dependency 'rspec', '~> 3.5'
   spec.add_development_dependency 'simplecov', '~> 0.13'