diff --git a/docker-compose.yml b/docker-compose.yml
index 32bfb26..9db0809 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1171,7 +1171,7 @@ services:
       - CMD-SHELL
       - pg_isready -d $${POSTGRES_DB} -U $${POSTGRES_USER}
       timeout: 5s
-    image: docker.io/library/postgres:16-alpine
+    image: docker.io/library/postgres:18-alpine
     restart: unless-stopped
     volumes:
     - authentik-database:/var/lib/postgresql/data