Merge pull request #1585 from rails-api/revert-1573-master

Revert "Safe to using rake 11.0.1 now."

Author: bf4

active_model_serializers.gemspec

@@ -57,5 +57,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest-reporters'
   spec.add_development_dependency 'grape', ['>= 0.13', '< 1.0']
   spec.add_development_dependency 'json_schema'
-  spec.add_development_dependency 'rake', ['>= 10.0', '< 12.0']
+  spec.add_development_dependency 'rake', '~> 10.0'
 end