diff --git a/INSTALL b/INSTALL
index 672d493..0c88ced 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 sudo apt update
-sudo apt install libcap-dev xinit python3-libcamera python3-picamera2 #######??????######### libcamera-dev libcamera-apps
+sudo apt install libcap-dev xinit python3-libcamera python3-picamera2 python3-rpi.gpio #######??????######### libcamera-dev libcamera-apps
 
 
 python3 -m venv venv --system-site-packages