diff --git a/Cargo.toml b/Cargo.toml
index e2b805e..becf945 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "simpledateformat"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 description = "SimpleDateFormat.java style like date format"
diff --git a/README.md b/README.md
index ab86a85..8f37b52 100644
--- a/README.md
+++ b/README.md
@@ -33,3 +33,9 @@ Output:
 
 More tests:
 > https://git.hatter.ink/hatter/simpledateformat/src/branch/master/tests/lib_test.rs
+
+
+Log
+
+* Jun 23, 2020 - v0.1.1
+    * add `simpledateformat::new_with_out_err(&str)`
\ No newline at end of file