diff --git a/README.md b/README.md
index 2f1d7492..eaa16420 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ A Riru module trying to provide a ART hooking framework (mainly for Android Pie)
 1. make sure Magisk v17.0 or higher is installed.
 2. download [Riru-core](https://github.com/RikkaApps/Riru/releases) v10 or higher and install it in Magisk Manager or recovery.
 3. download [EdXposed](https://github.com/solohsu/EdXposed/releases) and install it in Magisk Manager or recovery.
+4. Install official or third-part Xposed Installer.
 4. reboot.
 5. have fun :)