Update crontab after deploy

config/deploy.rb

@@ -23,3 +23,11 @@ namespace :deploy do
     end
   end
 end
+
+namespace :whenever do
+  task :update_crontab do
+    run 'bundle exec whenever --update-crontab'
+  end
+end
+
+after 'deploy', 'whenever:update_crontab'