diff --git a/README.md b/README.md
index b79d0b6f..cb028557 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,12 @@ ps aux | grep gpsd
 
 sudo dpkg-reconfigure -plow gpsd
 
+5. update firmware
 
+sudo apt-get update
+sudo apt-get dist-upgrade
+sudo rpi-update
+sudo reboot now
 
 The CubeSat Simulator https://github.com/alanbjohnston/CubeSatSim/wiki is a low cost satellite emulator that runs on solar panels and batteries, transmits UHF radio telemetry, has a 3D printed frame, and can be extended by additional sensors and modules.  This project is sponsored by the not-for-profit [Radio Amateur Satellite Corporation, AMSAT®](https://amsat.org).