diff --git a/rspec-rails.gemspec b/rspec-rails.gemspec
index b26d1eab1d..20101b8bc6 100644
--- a/rspec-rails.gemspec
+++ b/rspec-rails.gemspec
@@ -57,7 +57,9 @@ Gem::Specification.new do |s|
 **************************************************
 }
 
-  s.add_runtime_dependency "rails", "~> 3.0.0"
+  s.add_runtime_dependency(%q<activesupport>, ["~> 3.0.0"])
+  s.add_runtime_dependency(%q<actionpack>, ["~> 3.0.0"])
+  s.add_runtime_dependency(%q<railties>, ["~> 3.0.0"])
   s.add_runtime_dependency "rspec", "~> #{RSpec::Rails::Version::STRING.split('.')[0..1].join('.')}"
 end