rack-graphql.gemspec in rack-graphql-2.7.0 vs rack-graphql.gemspec in rack-graphql-2.7.1

@@ -23,10 +23,10 @@
   spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
   spec.required_ruby_version = '>= 2.6'
 
-  spec.add_dependency 'graphql'
+  spec.add_dependency 'graphql', '~> 1.12'
   spec.add_dependency 'oj'
   spec.add_dependency 'rack', '~> 2.2'
 
   spec.add_development_dependency 'awesome_print'
   spec.add_development_dependency 'bundler'