diff --git a/roles/matrix/templates/docker-compose.yml.j2 b/roles/matrix/templates/docker-compose.yml.j2
index 1a2e904..59e32b2 100644
--- a/roles/matrix/templates/docker-compose.yml.j2
+++ b/roles/matrix/templates/docker-compose.yml.j2
@@ -2,7 +2,7 @@ version: '3'
 
 services:
   postgres:
-    image: postgres:latest
+    image: postgres:15
     restart: unless-stopped
     networks:
       - internal