yoti.gemspec in yoti-1.5.0 vs yoti.gemspec in yoti-1.6.0

@@ -16,18 +16,20 @@
   DESC
 
   spec.homepage      = 'https://github.com/getyoti/yoti-ruby-sdk'
   spec.license       = 'MIT'
 
-  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features|examples)/}) }
+  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features|examples)/|^sonar-project.properties$|^.dependabot/config.yml$|^.travis.yml$}) }
   spec.require_paths = ['lib']
 
   spec.required_ruby_version = '>= 2.4'
 
-  spec.add_dependency 'google-protobuf', '~> 3.7.0'
+  spec.add_dependency 'activesupport', '~> 5.0' # Pin activesupport library to 5.x for Ruby 2.4 support
+  spec.add_dependency 'google-protobuf', '~> 3.7', '>= 3.7.0'
   spec.add_dependency 'protobuf', '~> 3.6'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
+  spec.add_development_dependency 'coveralls', '~> 0.8'
   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'