diff --git a/README.md b/README.md
index cecb0b0..f51878a 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,5 @@ To use:
 1. Create a .env file and add your API_KEY
 2. pip install -r requirements.txt
 3. python gtfs.py
+
+Original post: https://medium.com/@BennettGarner/parsing-gtfs-format-transit-data-in-real-time-with-python-3a528ba7aab7