installation-instructions.md

@@ -87,7 +87,7 @@ deb [ arch=amd64 ] https://downloads.skewed.de/apt DISTRIBUTION main
 where `DISTRIBUTION` can be any one of
 
 ```
-bullseye, buster, sid, bionic, eoan, focal
+bullseye, buster, sid, bionic, eoan, focal, groovy
 ```
 
 You should then download the public key [`612DEFB798507F25`](https://keys.openpgp.org/search?q=612DEFB798507F25) to verify the packages, with the command: