diff --git a/postgres/18/Dockerfile b/postgres/18/Dockerfile
index a4f5a77..1138981 100644
--- a/postgres/18/Dockerfile
+++ b/postgres/18/Dockerfile
@@ -11,7 +11,7 @@ ENV PATH="${POSTGRESQL_BASE_DIR}/bin:${PATH}"
 
 # Install PostgreSQL
 # renovate: datasource=docker depName=postgres versioning=regex:^(?<major>\d+)\.(?<minor>\d+)$
-ARG POSTGRES_VERSION=18.4
+ARG POSTGRES_VERSION=18.6
 ENV POSTGRESQL_VERSION ${POSTGRES_VERSION}
 RUN install_packages bison clang dirmngr flex gosu gnupg libclang-dev libicu-dev libipc-run-perl libkrb5-dev libldap2-dev liblz4-dev locales libpam-dev libperl-dev libpython3-dev libreadline-dev libssl-dev libxml2-dev libxslt1-dev llvm llvm-dev meson ninja-build postgresql-server-dev-all python3-dev tcl-dev uuid-dev
 RUN curl -sSL "https://ftp.postgresql.org/pub/source/v${POSTGRESQL_VERSION}/postgresql-${POSTGRESQL_VERSION}.tar.gz" | tar -xz && \
diff --git a/postgres/upgrade_helpers/12-14/Dockerfile b/postgres/upgrade_helpers/12-14/Dockerfile
index 7872828..e487743 100644
--- a/postgres/upgrade_helpers/12-14/Dockerfile
+++ b/postgres/upgrade_helpers/12-14/Dockerfile
@@ -1,4 +1,4 @@
-FROM postgres:14-bookworm
+FROM postgres:18-bookworm
 
 RUN sed -i 's/$/ 12/' /etc/apt/sources.list.d/pgdg.list