diff --git a/README.md b/README.md
index 1d945b9..df0089b 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,9 @@ $ cargo install digest-tool
 $ cargo install --git https://git.hatter.ink/hatter/digest.git
 ```
 
+> Compile under macOS-arm64 try use target: `x86_64-apple-darwin`
+
+
 Supported algorithms:<br>
 MD5, SHA1, SHA224, SHA256, SHA512, SHA512-224, SHA512-256,<br>
 SHA3-224, SHA3-256, SHA3-384, SHA3-512, SHAKE-128, SHAKE-256,<br>