diff --git a/README.md b/README.md
index 31e77ac..0523c6e 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,8 @@ On first boot:
 sudo raspi-config
 # Interfacing Options → enable SPI and I2C
 sudo apt update && sudo apt upgrade -y
-sudo apt install -y git python3-venv python3-pip chromium-browser
+sudo apt install -y git python3-venv python3-pip chromium
+# On older Raspberry Pi OS (Bookworm and earlier) the package is named chromium-browser instead.
 ```
 
 Install the Inky library via Pimoroni's installer (creates `~/.virtualenvs/pimoroni`):