diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index 7c7516145..32b07b8da 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.
-66dedebafa80a65ed973c6f47fecf964165dcb793ecad7b61aa19f082868b267  -
+896fe621517189d3659f67c322963f7654e5c7abba7b4e3a055b7922cde0746d  -
diff --git a/crates/endian_trait/RUSTSEC-0000-0000.md b/crates/endian_trait/RUSTSEC-2021-0039.md
similarity index 96%
rename from crates/endian_trait/RUSTSEC-0000-0000.md
rename to crates/endian_trait/RUSTSEC-2021-0039.md
index d1f3180eb..361b615a7 100644
--- a/crates/endian_trait/RUSTSEC-0000-0000.md
+++ b/crates/endian_trait/RUSTSEC-2021-0039.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2021-0039"
 package = "endian_trait"
 date = "2021-01-04"
 url = "https://gitlab.com/myrrlyn/endian_trait/-/issues/1"