diff --git a/matrix.yml b/matrix.yml
index 143eea8..397eef3 100644
--- a/matrix.yml
+++ b/matrix.yml
@@ -334,7 +334,7 @@
                 - traefik.http.routers.matrix-{{ ansible_facts['hostname'] }}-synapse.middlewares=secHeaders@file
           
             matrix.{{inventory_hostname}}--db:
-              image: docker.io/postgres:latest
+              image: docker.io/postgres:15
               restart: unless-stopped
               command: postgres -c wal_level=minimal -c max_wal_size=100MB -c max_wal_senders=0
               volumes: