diff --git a/activeadmin-mongoid.gemspec b/activeadmin-mongoid.gemspec
index c02eda9..c6f132e 100644
--- a/activeadmin-mongoid.gemspec
+++ b/activeadmin-mongoid.gemspec
@@ -24,5 +24,5 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency 'sass-rails',  ['>= 3.1.4', '< 5.0']
   # gem.add_runtime_dependency 'meta_search',  '~> 1.1.3'
 
-  gem.add_development_dependency 'rspec-rails',  '~> 2.7'
+  gem.add_development_dependency 'rspec-rails',  '~> 3.7'
 end