diff --git a/scim_rails.gemspec b/scim_rails.gemspec
index 8b053a9..34ddb8b 100644
--- a/scim_rails.gemspec
+++ b/scim_rails.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |s|
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
 
   s.required_ruby_version = ">= 2.4"
-  s.add_dependency "rails", ">= 6.0", "<= 7.1"
+  s.add_dependency "rails", ">= 6.0", "< 8.0"
   s.add_runtime_dependency "jwt", ">= 1.5"
   s.test_files = Dir["spec/**/*"]