diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index 2d98e75..a82e239 100644
--- a/.duplicate-id-guard
+++ b/.duplicate-id-guard
@@ -1,3 +1,3 @@
 This file causes merge conflicts if two ID assignment jobs run concurrently.
 This prevents duplicate ID assignment due to a race between those jobs.
-a527034414c1d6f0d1b3f573151e9c4b309d3a9d0c00a5b5c02283e4d12a7d39  -
+40fc62e069a348958bbd572a181c7c4084abffcda2dfbed9a001bdb904d89fb2  -
diff --git a/crates/encoding/RUSTSEC-0000-0000.md b/crates/encoding/RUSTSEC-2021-0153.md
similarity index 95%
rename from crates/encoding/RUSTSEC-0000-0000.md
rename to crates/encoding/RUSTSEC-2021-0153.md
index 1756713..a37cb2a 100644
--- a/crates/encoding/RUSTSEC-0000-0000.md
+++ b/crates/encoding/RUSTSEC-2021-0153.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2021-0153"
 package = "encoding"
 date = "2021-12-05"
 url = "https://github.com/lifthrasiir/rust-encoding/issues/127"