diff --git a/Distribution-specific-instructions.md b/Distribution-specific-instructions.md
index af91d02..cbaa79a 100644
--- a/Distribution-specific-instructions.md
+++ b/Distribution-specific-instructions.md
@@ -12,18 +12,18 @@ To install the EPL source / run the EPL container you need your download.egroupw
 ```
 It will ask your EPL repo credentials, add them and the EPL image to your docker-compose.yml file and start the EPL container.
 
-# Ubuntu 20.04, 18.04 & 16.04 or Debian 10
+# Ubuntu 20.04, 18.04 & 16.04 or Debian 11 or 10
 For new installations or updating from EPL you need to add our server:eGroupWare repo first:
 ```
 echo 'deb http://download.opensuse.org/repositories/server:/eGroupWare/xUbuntu_20.04/ /' | sudo tee /etc/apt/sources.list.d/server:eGroupWare.list
-sudo apt install gnupg # required, but not installed by apt-key add for Debian 10
+sudo apt install gnupg # required, but not installed by apt-key add for Debian 10/11
 wget -nv https://download.opensuse.org/repositories/server:eGroupWare/xUbuntu_20.04/Release.key -O - | sudo apt-key add -
 sudo apt update
 ```
 For Ubuntu 18.04 the docker.service must be enable manually to automatic start at system start:
 `sudo systemctl enable docker.service`
 
-> For Ubuntu 18.04 or 16.04 please replace in the above instructions "xUbuntu_20.04" with "xUbuntu_18.04" or "xUbuntu_16.04", for Debian 10 use "Debian_10".
+> For Ubuntu 18.04 or 16.04 please replace in the above instructions "xUbuntu_20.04" with "xUbuntu_18.04" or "xUbuntu_16.04", for Debian use "Debian_10" or "Debian_11".
 
 Then you need to run for new installations as well as **upgrades from before 19.1** explicitly (```apt upgrade``` alone is not sufficient!):
 ```