diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index 4c03d6f..6373f2f 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.
-1d6a46980d78d728cc450bb2f04901339767dcfdadebc064121edc4a8ab2918b  -
+c81a40210771ef91e9ea664a2453abb7d2b0108d2693505f079bcf84a35d78d8  -
diff --git a/crates/atty/RUSTSEC-0000-0000.md b/crates/atty/RUSTSEC-2021-0145.md
similarity index 97%
rename from crates/atty/RUSTSEC-0000-0000.md
rename to crates/atty/RUSTSEC-2021-0145.md
index 7a14b6c..ce8e0ba 100644
--- a/crates/atty/RUSTSEC-0000-0000.md
+++ b/crates/atty/RUSTSEC-2021-0145.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2021-0145"
 package = "atty"
 date = "2021-07-04"
 url = "https://github.com/softprops/atty/issues/50"