diff --git a/CHANGES.md b/CHANGES.md
index 1d6dffec6..2b0179edc 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,7 +1,7 @@
 Synapse 1.38.0rc1 (2021-07-06)
 ==============================
 
-This release includes a database schema update which could result in elevated disk usage. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade.md#upgrading-to-v1380) for more information.
+This release includes a database schema update which could result in elevated disk usage. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#upgrading-to-v1380) for more information.
 
 Features
 --------