diff --git a/postgres/Dockerfile b/postgres/Dockerfile
index 36081e9..fc8a59f 100644
--- a/postgres/Dockerfile
+++ b/postgres/Dockerfile
@@ -1,4 +1,4 @@
-FROM postgres:12-bullseye
+FROM postgres:15.3-bullseye
 EXPOSE 5432
 
 COPY ./maintenance /usr/local/bin/maintenance