diff --git a/installer/Dockerfile-python-pg b/installer/Dockerfile-python-pg
index cdd1b5d73..05bfce27a 100644
--- a/installer/Dockerfile-python-pg
+++ b/installer/Dockerfile-python-pg
@@ -1,5 +1,5 @@
-FROM python:3.11-slim-bullseye AS python-stage
-FROM postgres:15.14-bullseye
+FROM python:3.11-slim-bookworm AS python-stage
+FROM postgres:15.14-bookworm
 
 ARG DEPENDENCIES="                    \
         libexpat1-dev                 \