diff --git a/crates/cpuid-bool/RUSTSEC-0000-0000.md b/crates/cpuid-bool/RUSTSEC-0000-0000.md
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+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "cpuid-bool"
+date = "2021-05-06"
+informational = "unmaintained"
+url = "https://github.com/RustCrypto/utils/pull/381"
+
+[versions]
+patched = []
+unaffected = []
+```
+
+# `cpuid-bool` has been renamed to `cpufeatures`
+
+Please use the `cpufeatures`` crate going forward:
+
+<https://github.com/RustCrypto/utils/tree/master/cpufeatures>
+
+There will be no further releases of `cpuid-bool`.