diff --git a/config/environments/production.rb b/config/environments/production.rb
index 00322cd..9ac4622 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -83,4 +83,6 @@ Gitlab::Application.configure do
 
   config.eager_load = true
   config.assets.js_compressor = :uglifier
+
+  config.allow_concurrency = false
 end
--
libgit2 0.21.2