diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index bdcbcdb..4923b3b 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.
-e28349e3eb84ae54f74e4540ee236f5040a6f4d13ead43f25b12a2f1f7ca2db2  -
+6eb77762c65bcccca09c1338922ff6b638fdd315a404526c1f71b7152388277f  -
diff --git a/crates/marc/RUSTSEC-0000-0000.md b/crates/marc/RUSTSEC-2021-0014.md
similarity index 97%
rename from crates/marc/RUSTSEC-0000-0000.md
rename to crates/marc/RUSTSEC-2021-0014.md
index 0fee85f..7404877 100644
--- a/crates/marc/RUSTSEC-0000-0000.md
+++ b/crates/marc/RUSTSEC-2021-0014.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2021-0014"
 package = "marc"
 date = "2021-01-26"
 url = "https://github.com/blackbeam/rust-marc/issues/7"