diff --git a/Gemfile b/Gemfile
index 9893893..b45948a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,6 +10,4 @@ if RUBY_VERSION < "2.2"
 elsif RUBY_VERSION < "3.1"
   gem "sqlite3", "~> 1.4.0"
   gem "term-ansicolor", "< 1.10.3"
-elsif RUBY_VERSION >= "3.4"
-  gem "factory_bot", "~> 6.0"
 end
diff --git a/restpack_serializer.gemspec b/restpack_serializer.gemspec
index dcbf1c4..05fdc6f 100644
--- a/restpack_serializer.gemspec
+++ b/restpack_serializer.gemspec
@@ -17,15 +17,15 @@ Gem::Specification.new do |gem|
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
-  gem.add_dependency 'activesupport', ['>= 4.0.3', '< 8.2']
-  gem.add_dependency 'activerecord', ['>= 4.0.3', '< 8.2']
+  gem.add_dependency 'activesupport', '>= 4.0.3'
+  gem.add_dependency 'activerecord', '>= 4.0.3'
   gem.add_dependency 'kaminari', ['>= 0.17.0', '< 2.0']
 
   gem.add_development_dependency 'restpack_gem', '~> 0.0.9'
   gem.add_development_dependency 'rake', '~> 13'
   gem.add_development_dependency 'guard-rspec', '~> 4.7'
   gem.add_development_dependency 'sqlite3', '~> 2.1'
-  gem.add_development_dependency 'factory_bot', '~> 5.0'
+  gem.add_development_dependency 'factory_bot', '>= 5.0'
   gem.add_development_dependency 'database_cleaner'
   gem.add_development_dependency 'rspec'
   gem.add_development_dependency 'bump'