diff --git a/gtfs/spec/en/reference.md b/gtfs/spec/en/reference.md
index 39c4eabe2..05d341ea8 100644
--- a/gtfs/spec/en/reference.md
+++ b/gtfs/spec/en/reference.md
@@ -1,6 +1,6 @@
 ## General Transit Feed Specification Reference
 
-**Revised May 9, 2022. See [Revision History](../../CHANGES.md) for more details.**
+**Revised Dec 8, 2022. See [Revision History](../../CHANGES.md) for more details.**
 
 This document defines the format and structure of the files that comprise a GTFS dataset.