Gemfile in keen-0.9.6 vs Gemfile in keen-0.9.7

@@ -2,10 +2,10 @@
 
 group :development, :test do
   gem 'rake'
   gem 'em-http-request'
   gem 'em-synchrony', :require => false
-  gem 'rspec', '~>2'
-  gem 'webmock'
+  gem 'rspec', '~>3.5'
+  gem 'webmock', '<= 2.2'
 end
 
 gemspec