diff --git a/unicorn/attributes/default.rb b/unicorn/attributes/default.rb
index c2707479b5..164d80ce96 100644
--- a/unicorn/attributes/default.rb
+++ b/unicorn/attributes/default.rb
@@ -20,7 +20,7 @@
 default[:unicorn][:backlog] = 1024
 default[:unicorn][:timeout] = 60
 default[:unicorn][:preload_app] = true
-default[:unicorn][:version] = '4.7.0'
+default[:unicorn][:version] = '5.0.0'
 default[:unicorn][:tcp_nodelay] = true
 default[:unicorn][:tcp_nopush] = false
 default[:unicorn][:tries] = 5