diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index 2a159a9..c8b158a 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.
-77f3095b314c346e6a4112b4e820c1d100281ef153e255493cf51695193075bf  -
+4acc4726eaeb20e631052cefcea5c3b35a917762dea8d7a6e43e822d552c2d6c  -
diff --git a/crates/personnummer/RUSTSEC-0000-0000.md b/crates/personnummer/RUSTSEC-2020-0166.md
similarity index 96%
rename from crates/personnummer/RUSTSEC-0000-0000.md
rename to crates/personnummer/RUSTSEC-2020-0166.md
index 2b63159..c3688d5 100644
--- a/crates/personnummer/RUSTSEC-0000-0000.md
+++ b/crates/personnummer/RUSTSEC-2020-0166.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2020-0166"
 package = "personnummer"
 date = "2020-09-04"
 url = "https://github.com/personnummer/rust/pull/4"