diff --git a/README.md b/README.md
index b1bfed6b..4e9be8e1 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,14 @@ $ brew tap mono0926/license-plist
 $ brew install license-plist
 ```
 
+#### ⚠️ For High Sierra Beta/GM Candidate
+
+If you installed High Sierra Beta/GM Candidate, you should add `--no-sandbox` flag.
+
+```sh
+$ brew install mono0926/license-plist/license-plist --no-sandbox
+```
+
 ### Download the executable binary from [Releases](https://github.com/mono0926/LicensePlist/releases)
 
 Download from [Releases](https://github.com/mono0926/LicensePlist/releases), then copy to `/usr/local/bin/license-plist` etc.