diff --git a/crates/mio/RUSTSEC-0000-0000.md b/crates/mio/RUSTSEC-2020-0081.md
similarity index 95%
rename from crates/mio/RUSTSEC-0000-0000.md
rename to crates/mio/RUSTSEC-2020-0081.md
index 4e8731759..89eb3dbcd 100644
--- a/crates/mio/RUSTSEC-0000-0000.md
+++ b/crates/mio/RUSTSEC-2020-0081.md
@@ -1,6 +1,6 @@
 ```toml
 [advisory]
-id = "RUSTSEC-0000-0000"
+id = "RUSTSEC-2020-0081"
 package = "mio"
 date = "2020-11-02"
 url = "https://github.com/tokio-rs/mio/issues/1386"
@@ -20,4 +20,4 @@ and `std::net::SocketAddrV6` have the same memory layout as the system C represe
 system representation. The standard library does not say anything about the memory
 layout, and this will cause invalid memory access if the standard library
 changes the implementation. No warnings or errors will be emitted once the
-change happens.
\ No newline at end of file
+change happens.