diff --git a/sidekiq-debounce.gemspec b/sidekiq-debounce.gemspec
index 2351d5b..90175fa 100644
--- a/sidekiq-debounce.gemspec
+++ b/sidekiq-debounce.gemspec
@@ -27,7 +27,7 @@ DESC
 
   spec.add_dependency 'sidekiq', '>= 3.0'
   spec.add_development_dependency 'rake', '~> 10.0'
-  spec.add_development_dependency 'bundler', '~> 1.7'
+  spec.add_development_dependency 'bundler', '~> 1.6'
   spec.add_development_dependency 'mock_redis'
   spec.add_development_dependency 'mocha'
   spec.add_development_dependency 'codeclimate-test-reporter'