diff --git a/action_controller_tweaks.gemspec b/action_controller_tweaks.gemspec
index def44df..bfdd825 100644
--- a/action_controller_tweaks.gemspec
+++ b/action_controller_tweaks.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "bundler", ">= 1.0.0"
   s.add_development_dependency "rake", ">= 10.0", "<= 14.0"
   s.add_development_dependency "appraisal", "~> 2.0", ">= 2.5.0"
-  s.add_development_dependency "rspec-rails", ">= 5.1", "< 7"
+  s.add_development_dependency "rspec-rails", ">= 5.1", "< 8"
   s.add_development_dependency "rspec-its", "~> 1.0"
   # rspec-rails needs activerecord...
   s.add_development_dependency "activerecord", ">= 4.0.0"