diff --git a/Procfile b/Procfile
index 7ca70960502..a5693f8dbc5 100644
--- a/Procfile
+++ b/Procfile
@@ -1,2 +1,2 @@
-web: bundle exec unicorn_rails -p ${PORT} -E ${RAILS_ENV} -c ${UNICORN_CONFIG:="config/unicorn.rb"}
+web: bundle exec unicorn_rails -p ${PORT:="3000"} -E ${RAILS_ENV:="development"} -c ${UNICORN_CONFIG:="config/unicorn.rb"}
 worker: bundle exec sidekiq -q post_receive,mailer,system_hook,project_web_hook,common,default,gitlab_shell