diff --git a/estella.gemspec b/estella.gemspec
index ee4ddb5..9036da9 100644
--- a/estella.gemspec
+++ b/estella.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |gem|
 
   gem.add_development_dependency 'activerecord'
   gem.add_development_dependency 'rake', '>= 12.3.3'
-  gem.add_development_dependency 'rspec', '~> 3.1.0'
+  gem.add_development_dependency 'rspec', '>= 3.5'
   gem.add_development_dependency 'rspec-expectations'
   gem.add_development_dependency 'rubocop', '0.60.0'
   gem.add_development_dependency 'sqlite3'