easypost.gemspec in easypost-4.8.1 vs easypost.gemspec in easypost-4.9.0

@@ -21,13 +21,15 @@
   spec.require_paths = ['lib']
   spec.required_ruby_version = '>= 2.5'
 
   spec.add_development_dependency 'brakeman', '~> 5.2'
   spec.add_development_dependency 'pry', '~> 0.14'
+  spec.add_development_dependency 'psych', '~> 4.0' # TODO: pinned because rdoc has an optimistic pin of this dep and 5.0 breaks on CI
   spec.add_development_dependency 'rake', '~> 13.0'
+  spec.add_development_dependency 'rdoc', '~> 6.4'
   spec.add_development_dependency 'rspec', '~> 3.10'
   spec.add_development_dependency 'rubocop', '= 1.27' # rubocop 1.28 requires Ruby 2.6+
-  spec.add_development_dependency 'rubocop-rspec', '~> 2.7'
+  spec.add_development_dependency 'rubocop-rspec', '= 2.10' # rubocop-rspec 2.11 requires Ruby 2.6+
   spec.add_development_dependency 'simplecov', '~> 0.21'
   spec.add_development_dependency 'simplecov-lcov', '~> 0.8'
   spec.add_development_dependency 'vcr', '= 6.0' # VCR 6.1 requires Ruby 2.6+
   spec.add_development_dependency 'webmock', '~> 3.14'
 end