diff --git a/acts_as_hashids.gemspec b/acts_as_hashids.gemspec
index 34ed736..5db749c 100644
--- a/acts_as_hashids.gemspec
+++ b/acts_as_hashids.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = ['>= 2.2.2', '< 2.7']
 
-  spec.add_runtime_dependency 'activerecord', '>= 4.0', '< 6.0'
+  spec.add_runtime_dependency 'activerecord', '>= 4.0', '< 6.1'
   spec.add_runtime_dependency 'hashids', '~> 1.0'
 
   spec.add_development_dependency 'codeclimate-test-reporter', '~> 0.5'