diff --git a/crates/serde_yml/RUSTSEC-0000-0000.md b/crates/serde_yml/RUSTSEC-0000-0000.md
index b040df95..900f09a0 100644
--- a/crates/serde_yml/RUSTSEC-0000-0000.md
+++ b/crates/serde_yml/RUSTSEC-0000-0000.md
@@ -23,7 +23,9 @@ If you rely on this crate, it is highly recommended switching to a maintained al
 - [`serde_norway`](https://crates.io/crates/serde_norway) - Maintained fork of `serde_yaml`, using `unsafe-libyaml-norway`
 - [`serde_yaml_ng`](https://crates.io/crates/serde_yaml_ng) - Maintained fork of `serde_yaml`, using unmaintained `unsafe-libyaml`
 
-## Incomplete alternatives
+## Incomplete pure Rust alternatives
+
+These implementation do not rely on C `libyaml`.
 
 - [`serde_yaml2`](https://crates.io/crates/serde_yaml2)
 - [`yaml-peg`](https://crates.io/crates/yaml-peg)