griddler-sendgrid.gemspec in griddler-sendgrid-0.0.1 vs griddler-sendgrid.gemspec in griddler-sendgrid-1.0.0

@@ -16,9 +16,9 @@
   spec.files         = `git ls-files -z`.split("\x0")
   spec.test_files    = spec.files.grep(%r{^spec/})
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'rake'
-  spec.add_development_dependency 'rspec'
+  spec.add_development_dependency 'rspec', '~> 3.5'
 
   spec.add_dependency 'griddler'
 end