diff --git a/README.md b/README.md
index c4bbd71..253a915 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ Libs used for benchmark:
 
 - [pydantic 2.4.2](https://docs.pydantic.dev/latest/)
 - [msgspec 0.18.4](https://jcristharif.com/msgspec/index.html)
+- [attrs 23.1.0](https://www.attrs.org)
 
 Note that Pydantic used in benchmark is v2 which should be dozen of times faster than Pydantic v1. I have no time to waste benchmarking Pydantic v1.
 
@@ -31,11 +32,15 @@ python main.py
 
 ## Results
 
+Test file: json, 162MB
+
 ```
 *** Running PydanticBenchmark
-Finished in 10.781s
+Finished in 10.733s
+*** Running AttrsBenchmark
+Finished in 3.271s
 *** Running MsgSpecBenchmark
-Finished in 1.725s
+Finished in 1.685s
 ```
 
 ```