diff --git a/crates/spin/RUSTSEC-2019-0031.toml b/crates/spin/RUSTSEC-2019-0031.toml
index 99b7f16..9ff0aaa 100644
--- a/crates/spin/RUSTSEC-2019-0031.toml
+++ b/crates/spin/RUSTSEC-2019-0031.toml
@@ -12,6 +12,7 @@ Consider the following alternatives (both of which support `no_std`):
 
 - [`conquer-once`](https://github.com/oliver-giersch/conquer-once)
 - [`lock_api`](https://crates.io/crates/lock_api) (a subproject of `parking_lot`)
+  - [`spinning_top`](https://github.com/rust-osdev/spinning_top) spinlock crate built on `lock_api`
 """
 
 [versions]