diff --git a/.github/workflows/check_custom_vcpkg_ports.yml b/.github/workflows/check_custom_vcpkg_ports.yml
new file mode 100644
index 0000000000..bf01109b5d
--- /dev/null
+++ b/.github/workflows/check_custom_vcpkg_ports.yml
@@ -0,0 +1,42 @@
+# This file is part of BOINC.
+# http://boinc.berkeley.edu
+# Copyright (C) 2024 University of California
+#
+# BOINC is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License
+# as published by the Free Software Foundation,
+# either version 3 of the License, or (at your option) any later version.
+#
+# BOINC is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with BOINC.  If not, see <http://www.gnu.org/licenses/>.
+
+name: Check vcpkg ports
+on:
+  schedule:
+    - cron:  '0 0 * * *'
+
+jobs:
+  build:
+    if: github.repository == 'BOINC/boinc'
+    name: ${{ matrix.type }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        type: [check]
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
+        with:
+          fetch-depth: 2
+      - name: Bootstrap vcpkg
+        run: |
+          ./linux/bootstrap_vcpkg_cmake.sh
+      - name: Check custom vcpkg ports for upstream updates
+        if: success()
+        run: |
+          python ./ci_tools/check_custom_vcpkg_ports_for_updates.py
diff --git a/3rdParty/vcpkg_ports/ports/gdk-pixbuf/vcpkg.json b/3rdParty/vcpkg_ports/ports/gdk-pixbuf/vcpkg.json
index 078a3d6051..e8538e05af 100644
--- a/3rdParty/vcpkg_ports/ports/gdk-pixbuf/vcpkg.json
+++ b/3rdParty/vcpkg_ports/ports/gdk-pixbuf/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "gdk-pixbuf",
   "version": "2.42.12",
+  "port-version": 1,
   "description": "Image loading library.",
   "homepage": "https://gitlab.gnome.org/GNOME/gdk-pixbuf",
   "license": "LGPL-2.1-or-later",
diff --git a/ci_tools/check_custom_vcpkg_ports_for_updates.py b/ci_tools/check_custom_vcpkg_ports_for_updates.py
new file mode 100644
index 0000000000..40ca149cdf
--- /dev/null
+++ b/ci_tools/check_custom_vcpkg_ports_for_updates.py
@@ -0,0 +1,53 @@
+import json
+import os
+import sys
+
+def get_vcpkg_ports():
+    vcpkg_ports = []
+    for root, _, files in os.walk('3rdParty/vcpkg_ports/ports'):
+        for file in files:
+            if file == 'vcpkg.json':
+                vcpkg_ports.append(os.path.join(root, file))
+    return vcpkg_ports
+
+def get_port_info(port):
+    with open(port, 'r') as f:
+        data = json.load(f)
+
+    name = data.get('name')
+    version = data.get('version')
+    port_version = data.get('port-version', 0)
+
+    return name, version, port_version
+
+def parse_ports(file_path):
+    with open(file_path, 'r') as f:
+        data = json.load(f)
+
+    ports_info = []
+    for port, details in data.get('default', {}).items():
+        baseline = details.get('baseline')
+        port_version = details.get('port-version', 0)
+        ports_info.append((port, baseline, port_version))
+
+    return ports_info
+
+def check_for_updated_ports():
+    updated_ports = []
+    for port in get_vcpkg_ports():
+        name, version, port_version = get_port_info(port)
+        for port, baseline, baseline_version in parse_ports('3rdParty/linux/vcpkg/versions/baseline.json'):
+            if name == port and (version != baseline or port_version != baseline_version):
+                updated_ports.append((port, baseline, baseline_version))
+
+    return updated_ports
+
+updated_ports = check_for_updated_ports()
+if (updated_ports):
+    print('The following ports have been updated:')
+    for port, baseline, baseline_version in updated_ports:
+        print(f'{port}: {baseline}:{baseline_version}')
+    sys.exit(1)
+else:
+    print('All ports are up-to-date.')
+    sys.exit(0)