diff --git a/Cargo.lock b/Cargo.lock
index e7d57dd..a363a72 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 3
 
 [[package]]
 name = "acme-client"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "acme-lib",
  "async-std",
diff --git a/Cargo.toml b/Cargo.toml
index 77b2119..4c59ed4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "acme-client"
-version = "0.5.0"
+version = "0.6.0"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 description = "Acme auto challenge client, acme-client can issue certificates from Let's encrypt"