diff --git a/Cargo.toml b/Cargo.toml
index eba06b4..ab9d936 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "linux-raw-sys"
-version = "0.0.21-alpha.0"
+version = "0.0.21"
 authors = ["Dan Gohman <dev@sunfishcode.online>"]
 description = "Generated bindings for Linux's userspace API"
 documentation = "https://docs.rs/linux-raw-sys"