diff --git a/Cargo.toml b/Cargo.toml
index 877dc0b5..d4470411 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rnacos"
-version = "0.6.3"
+version = "0.6.4"
 authors = ["heqingpan <heqingpan@126.com>"]
 edition = "2018"
 license = "Apache-2.0"