diff --git a/cybersource_rest_client.gemspec b/cybersource_rest_client.gemspec
index 9c881b48..667cae6f 100644
--- a/cybersource_rest_client.gemspec
+++ b/cybersource_rest_client.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
 
   s.add_runtime_dependency 'typhoeus', '~> 1.0', '>= 1.0.1'
   s.add_runtime_dependency 'json', '~> 2.1', '>= 2.1.0'
-  s.add_runtime_dependency 'activesupport', '>= 6.0.3.2', '< 8.0'
+  s.add_runtime_dependency 'activesupport', '>= 6.0.3.2', '< 9.0'
   s.add_runtime_dependency 'interface','~> 1.0', '>= 1.0.4'
   s.add_runtime_dependency 'jwt', '2.7.0'
   s.add_runtime_dependency 'addressable', '~> 2.3', '>= 2.3.0'