diff --git a/Containers/postgresql/Dockerfile b/Containers/postgresql/Dockerfile
index 980ed423..217ae0bb 100644
--- a/Containers/postgresql/Dockerfile
+++ b/Containers/postgresql/Dockerfile
@@ -1,6 +1,8 @@
 # syntax=docker/dockerfile:latest
-# From https://github.com/docker-library/postgres/blob/master/17/alpine3.23/Dockerfile
-FROM postgres:17.9-alpine
+# From https://github.com/docker-library/postgres/blob/master/18/alpine3.23/Dockerfile
+FROM postgres:18.3-alpine
+
+ENV PGDATA=/var/lib/postgres
 
 COPY --chmod=775 start.sh /start.sh
 COPY --chmod=775 healthcheck.sh /healthcheck.sh