diff --git a/Procfile b/Procfile
index c95eda6..d43b8ec 100644
--- a/Procfile
+++ b/Procfile
@@ -1 +1 @@
-web: waitress-serve --port=8041 --url-scheme=https morepython.wsgi:application
+web: waitress-serve --port=8041 --url-scheme=https morepython.wsgi:application --port=$PORT