Hi @fxholl, this node was only introduced with n8n@0.199 I am afraid. So you would have to wait for the next desktop app update to use this node.
Alternatively, you could consider deploying n8n using another method. If you have docker installed, you could run docker run -it --rm --name n8n -p 5678:5678 -v ~/.n8n:/home/node/.n8n n8nio/n8n:0.204.0 in your terminal to start the 0.204.0 version of n8n on your machine.