diff --git a/README.md b/README.md
index afe84642..17d5982f 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ For other platforms, please use [Vagrantfile](#setting-up-vagrant) that we prepa
 
 ## Requires
 
-- Rust(See [here](https://www.rust-lang.org/tools/install))
+- Rust(See [here](https://www.rust-lang.org/tools/install)), edition 2021
 - Docker(See [here](https://docs.docker.com/engine/install))
 
 ## Dependencies