diff --git a/installer/Dockerfile-python-pg b/installer/Dockerfile-python-pg
index eb2501468..ab0ca78b8 100644
--- a/installer/Dockerfile-python-pg
+++ b/installer/Dockerfile-python-pg
@@ -1,4 +1,4 @@
-FROM postgres:15.6-bookworm
+FROM postgres:15.6-bullseye
 
 ARG DEPENDENCIES="                    \
         curl                          \