diff --git a/README.md b/README.md
index 8f37b52..d5b8095 100644
--- a/README.md
+++ b/README.md
@@ -38,4 +38,5 @@ More tests:
 Log
 
 * Jun 23, 2020 - v0.1.1
-    * add `simpledateformat::new_with_out_err(&str)`
\ No newline at end of file
+    * add `simpledateformat::new_with_out_err(&str)`
+    * add `impl TryFrom<&str> for SimpleDateFormat`