diff --git a/webserver/docker_matrix/templates/docker-compose.yml b/webserver/docker_matrix/templates/docker-compose.yml
index c763fd6e30491b1458087ecc732dae82aa76bd95..c843aeb4bbac429b5a060401ab10e19846320fb3 100644
--- a/webserver/docker_matrix/templates/docker-compose.yml
+++ b/webserver/docker_matrix/templates/docker-compose.yml
@@ -8,9 +8,12 @@ services:
   # Datenbank einlesen nach Upgrade (im Container)
   # psql -U synapse -d synapse < /var/lib/postgresql/data/dump.sql
 
+  # Alternativer weg mit inplace-Upgrade (funktioniert nicht)
+  # https://github.com/tianon/docker-postgres-upgrade
+
   db:
 
-    image: postgres:13.11
+    image: postgres:16.1
     restart: always
     volumes:
       - /srv/matrix/db:/var/lib/postgresql/data