duckdb.gemspec in duckdb-0.2.8.0 vs duckdb.gemspec in duckdb-0.2.9.0

@@ -19,15 +19,15 @@
   spec.metadata['source_code_uri'] = 'https://github.com/suketa/ruby-duckdb'
   spec.metadata['changelog_uri'] = 'https://github.com/suketa/ruby-duckdb/blob/master/CHANGELOG.md'
 
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
-  spec.files = Dir.chdir(File.expand_path('..', __FILE__)) do
+  spec.files = Dir.chdir(File.expand_path(__dir__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   end
   spec.require_paths = ['lib']
   spec.extensions    = ['ext/duckdb/extconf.rb']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'rake-compiler'