diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 133e92f0..e9dbd200 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -61,11 +61,3 @@ jobs:
         run: |
           go install github.com/mattn/goveralls@latest
           goveralls -service=github -coverprofile=build/cover.out
-    services:
-      postgres:
-        image: postgres:17
-        env:
-          POSTGRES_PASSWORD: postgres
-        ports:
-          - 54321:5432
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
diff --git a/testing/with-postgres-db.sh b/testing/with-postgres-db.sh
deleted file mode 100755
index 3c370c83..000000000
--- a/testing/with-postgres-db.sh
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/bin/sh
-
-# Copyright 2022 SAP SE
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# SPDX-License-Identifier: Apache-2.0
-
-# shellcheck shell=ash
-set -euo pipefail
-
-# Darwin compatibility
-if hash greadlink >/dev/null 2>/dev/null; then
-  readlink() { greadlink "$@"; }
-fi
-
-# set working directory to repo root
-cd "$(dirname "$(dirname "$(readlink -f "$0")")")"
-
-step() {
-  printf '\x1B[1;36m>>\x1B[0;36m %s...\x1B[0m\n' "$1"
-}
-
-if [ ! -d testing/postgresql-data/ ]; then
-  step "First-time setup: Creating PostgreSQL database for testing"
-  initdb -A trust -U postgres testing/postgresql-data/
-fi
-mkdir -p testing/postgresql-run/
-
-step "Configuring PostgreSQL"
-sed -ie '/^#\?\(external_pid_file\|unix_socket_directories\|port\)\b/d' testing/postgresql-data/postgresql.conf
-(
-  echo "external_pid_file = '${PWD}/testing/postgresql-run/pid'"
-  echo "unix_socket_directories = '${PWD}/testing/postgresql-run'"
-  echo "port = 54321"
-) >> testing/postgresql-data/postgresql.conf
-
-# usage in trap is not recognized
-# shellcheck disable=SC2317
-stop_postgres() {
-  EXIT_CODE=$?
-  step "Stopping PostgreSQL"
-  pg_ctl stop -D testing/postgresql-data/ -w -s
-  exit "${EXIT_CODE}"
-}
-
-step "Starting PostgreSQL"
-rm -f -- testing/postgresql.log
-trap stop_postgres EXIT INT TERM
-pg_ctl start -D testing/postgresql-data/ -l testing/postgresql.log -w -s
-
-step "Running command: $*"
-set +e
-"$@"
-EXIT_CODE=$?
-set -e
-
-exit "${EXIT_CODE}"