diff --git a/rmk/Cargo.toml b/rmk/Cargo.toml
index 9816beb4..bfe0be1b 100644
--- a/rmk/Cargo.toml
+++ b/rmk/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rmk"
-version = "0.1.20"
+version = "0.1.21"
 authors = ["Haobo Gu <haobogu@outlook.com>"]
 description = "Keyboard firmware written in Rust"
 homepage = "https://github.com/haobogu/rmk"