diff --git a/Installation-using-EGroupware-docker-RPM-DEB-package.md b/Installation-using-EGroupware-docker-RPM-DEB-package.md
index e6556f0..c888671 100644
--- a/Installation-using-EGroupware-docker-RPM-DEB-package.md
+++ b/Installation-using-EGroupware-docker-RPM-DEB-package.md
@@ -37,7 +37,7 @@ sudo apt install gnupg # required, but not installed by apt-key add in Debian 10
 wget -nv https://download.opensuse.org/repositories/server:eGroupWare/xUbuntu_22.04/Release.key -O - | sudo apt-key add - | sudo tee /etc/apt/trusted.gpg.d/server:eGroupWare.asc
 sudo apt update
 ```
-(replace ```22.04``` with ```20.04```, ```18.04``` or ```16.04```, or ```xUbuntu_20.04``` with ```Debian_10``` or ```Debian_11```)
+(replace `22.04` with `20.04` or `18.04`, or `xUbuntu_22.04` with `Debian_10`, `Debian_11` or `Debian_12`)
 
 > EGroupware 23.1 is also available in the Univention [App Center](https://www.univention.de/produkte/app-katalog/egroupware/).