diff --git a/Cargo.toml b/Cargo.toml
index fe535dc..725ff5c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "xml-doc"
-version = "0.1.1"
+version = "0.2.0"
 authors = ["Yoonchae Lee <bluegreenmagick@gmail.com>"]
 description = "Read, modify and write xml in tree-like structure. Supports UTF-16."
 edition = "2018"
diff --git a/README.md b/README.md
index 3feca0e..7431040 100644
--- a/README.md
+++ b/README.md
@@ -52,10 +52,10 @@ To run benchmark: `cd benches ; cargo bench`.
 
 ```
                   tiny(4.8KB) medium(1.5MB) large(25MB) medium(UTF-16)
-xml_doc v0.1.1:     88.40us     32.06ms      370.38ms      33.40ms
-minidom v0.12.0:   104.70us     48.80ms      682.06ms
-roxmltree v0.14.1:  53.00us     17.40ms      359.34ms
-xmltree v0.10.3:  4341.9 us   1352.2 ms    22863. ms
+xml_doc v0.2.0:     73.79us     29.74ms      341.05ms      29.16ms
+minidom v0.12.0:    85.19us     40.09ms      565.04ms
+roxmltree v0.14.1:  49.34us     16.33ms      330.90ms
+xmltree v0.10.3:  4065.8 us   1204.7 ms    21198.  ms
 ```
 
 Only roxmltree which doesn't support writing, is considerably faster than xml_doc. You can see the result of the benchmarks [here](https://github.com/BlueGreenMagick/xml-doc/runs/3845335396).