diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index 01d5e1e..b8c2131 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.
-9294fc0310efbd6362cadf0aadb33f1c69849018cb47497a2bc21c3507caa00e  -
+eb74c8b3b8a4e2af330ec03f3788ec9eaf23a4184b1a97ae893ea6ec3cad792d  -
diff --git a/crates/algorithmica/RUSTSEC-0000-0000.md b/crates/algorithmica/RUSTSEC-2021-0053.md
similarity index 95%
rename from crates/algorithmica/RUSTSEC-0000-0000.md
rename to crates/algorithmica/RUSTSEC-2021-0053.md
index 52b54a3..2b537e4 100644
--- a/crates/algorithmica/RUSTSEC-0000-0000.md
+++ b/crates/algorithmica/RUSTSEC-2021-0053.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2021-0053"
 package = "algorithmica"
 date = "2021-03-07"
 url = "https://github.com/AbrarNitk/algorithmica/issues/1"