diff --git a/UPSTREAM.md b/UPSTREAM.md
index 67c96c3..71d4767 100644
--- a/UPSTREAM.md
+++ b/UPSTREAM.md
@@ -1,6 +1,5 @@
 # Release provenance
 
-Version `0.1.2` was prepared from [`mailschema/mailschema@ad1a909`](https://github.com/mailschema/mailschema/commit/ad1a90942416302e4249ec6949003428b5965ef1).
+Version `0.1.2` was prepared from [`mailschema/mailschema@eddc745`](https://github.com/mailschema/mailschema/commit/eddc7456910bf6a3c33de51c46ebf50f61ee7342).
 
 The included contribution schema has SHA-256 digest `a8a241b4837971a6251bcc135c704283536f4fb825fbbaedaf1598c6e688d564`. The canonical schemas live in the main MailSchema repository; this repository owns the Rust package surface and its release history.
-