avromatic.gemspec in avromatic-2.4.0 vs avromatic.gemspec in avromatic-3.0.0

@@ -18,24 +18,24 @@
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '>= 2.4'
+  spec.required_ruby_version = '>= 2.5'
 
-  spec.add_runtime_dependency 'activemodel', '>= 5.0', '< 6.2'
-  spec.add_runtime_dependency 'activesupport', '>= 5.0', '< 6.2'
-  spec.add_runtime_dependency 'avro', '>= 1.7.7', '< 1.11'
-  spec.add_runtime_dependency 'avro_schema_registry-client', '>= 0.3.0'
+  spec.add_runtime_dependency 'activemodel', '>= 5.2', '< 6.2'
+  spec.add_runtime_dependency 'activesupport', '>= 5.2', '< 6.2'
+  spec.add_runtime_dependency 'avro', '>= 1.9.0', '< 1.11'
+  spec.add_runtime_dependency 'avro_schema_registry-client', '>= 0.4.0'
   spec.add_runtime_dependency 'avro_turf'
   spec.add_runtime_dependency 'ice_nine'
 
   spec.add_development_dependency 'appraisal'
   spec.add_development_dependency 'avro-builder', '>= 0.12.0'
-  spec.add_development_dependency 'bundler', '>= 1.11'
+  spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'overcommit', '0.35.0'
-  spec.add_development_dependency 'rake', '~> 10.0'
-  spec.add_development_dependency 'rspec', '~> 3.0'
+  spec.add_development_dependency 'rake', '~> 13.0'
+  spec.add_development_dependency 'rspec', '~> 3.8'
   spec.add_development_dependency 'rspec_junit_formatter'
   spec.add_development_dependency 'salsify_rubocop', '~> 0.52.1.1'
   spec.add_development_dependency 'simplecov'
   spec.add_development_dependency 'webmock'
   # For AvroSchemaRegistry::FakeServer