diff --git a/.duplicate-id-guard b/.duplicate-id-guard
index cf5a3f8..840c1ee 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.
-43bf3a0afac740769bbd62c6cd9dae558e4df635f3052ddca1da192ea24597c4  -
+8592f724a665e09819a56fedd4f37d7dd0f10d85d57321615e6d7d42ebd59256  -
diff --git a/crates/mach/RUSTSEC-0000-0000.md b/crates/mach/RUSTSEC-2020-0168.md
similarity index 94%
rename from crates/mach/RUSTSEC-0000-0000.md
rename to crates/mach/RUSTSEC-2020-0168.md
index 9d22bbc..921c7c3 100644
--- a/crates/mach/RUSTSEC-0000-0000.md
+++ b/crates/mach/RUSTSEC-2020-0168.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2020-0168"
 package = "mach"
 date = "2020-07-14"
 url = "https://github.com/fitzgen/mach/issues/63"