diff --git a/rb/selenium-webdriver.gemspec b/rb/selenium-webdriver.gemspec
index f8d89ee545c2a..f17d999f3dbe5 100644
--- a/rb/selenium-webdriver.gemspec
+++ b/rb/selenium-webdriver.gemspec
@@ -26,7 +26,7 @@ HTML of the application.'
   s.add_runtime_dependency 'childprocess', ['~> 0.5']
   s.add_runtime_dependency 'websocket', ['~> 1.0']
 
-  s.add_development_dependency 'rspec', ['~> 3.0']
+  s.add_development_dependency 'rspec', ['< 3.5']
   s.add_development_dependency 'rack', ['~> 1.0']
   s.add_development_dependency 'ci_reporter', ['~> 1.6', '>= 1.6.2']
   s.add_development_dependency 'webmock', ['~> 2.0']