diff --git a/README.md b/README.md
index 62af17d..6eb91dd 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,9 @@ The following library packages are required by the IoT code and should be instal
 
 `apt install libmosquitto-dev librabbitmq-dev libi2c-dev libgpiod-dev libcjson-dev`
 
+> [!NOTE]
+> The gpiod library must be below version 2.0. Debian Bookworm still distributes the old version of the library.
+
 > [!NOTE]
 > The RabbitMQ apt package is missing the header files - They can be copied from [here](https://github.com/alanxz/rabbitmq-c/tree/master/include/rabbitmq-c) into the `/usr/include/rabbitmq-c` folder