diff --git a/Dockerfile b/Dockerfile
index 94b10293..f6401fce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,6 +21,7 @@ ENV APP_HOME /hdm
 ENV RAILS_ENV production
 ENV HDM_PORT 3000
 ENV HDM_HOST 0.0.0.0
+ENV RUBYOPT="--yjit"
 
 EXPOSE $HDM_PORT
 
diff --git a/bin/fake_puppet_db b/bin/fake_puppet_db
index 0f6e2e66..0b63db15 100755
--- a/bin/fake_puppet_db
+++ b/bin/fake_puppet_db
@@ -1,11 +1,8 @@
 #!/usr/bin/env ruby
-# begin
-#   load File.expand_path('../spring', __FILE__)
-# rescue LoadError => e
-#   raise unless e.message.include?('spring')
-# end
+
+require 'rackup'
 require_relative '../test/support/fake_puppet_db'
 
 ENV["PIDFILE"] ||= "tmp/pids/fake_puppet_db.pid"
 
-Rack::Server.start(app: FakePuppetDB.new, Host: 'localhost', Port: 8083)
+Rackup::Server.start(app: FakePuppetDB.new, Host: 'localhost', Port: 8083)