diff --git a/.github/workflows/auto-dependabot.yaml b/.github/workflows/auto-dependabot.yaml
index e87d5fb..d3f5aa1 100644
--- a/.github/workflows/auto-dependabot.yaml
+++ b/.github/workflows/auto-dependabot.yaml
@@ -1,21 +1,39 @@
 name: Auto-merge Dependabot PR
 
 on:
-  pull_request:
+  # XXX: !!! SECURITY WARNING !!!
+  # pull_request_target has write access to the repo, and can read secrets. We
+  # need to audit any external actions executed in this workflow and make sure no
+  # checked out code is run (not even installing dependencies, as installing
+  # dependencies usually can execute pre/post-install scripts). We should also
+  # only use hashes to pick the action to execute (instead of tags or branches).
+  # For more details read:
+  # https://securitylab.github.com/research/github-actions-preventing-pwn-requests/
+  pull_request_target:
 
 permissions:
-  contents: write
+  contents: read
   pull-requests: write
 
 jobs:
   auto-merge:
-    if: github.actor == 'dependabot[bot]'
+    name: Auto-merge Dependabot PR
+    if: >
+      github.actor == 'dependabot[bot]' &&
+      !contains(github.event.pull_request.title, 'the repo-config group')
     runs-on: ubuntu-slim
     steps:
+      - name: Generate GitHub App token
+        id: app-token
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
+        with:
+          app-id: ${{ secrets.FREQUENZ_AUTO_DEPENDABOT_APP_ID }}
+          private-key: ${{ secrets.FREQUENZ_AUTO_DEPENDABOT_APP_PRIVATE_KEY }}
+
       - name: Auto-merge Dependabot PR
-        uses: frequenz-floss/dependabot-auto-approve@e943399cc9d76fbb6d7faae446cd57301d110165  # v1.5.0
+        uses: frequenz-floss/dependabot-auto-approve@e943399cc9d76fbb6d7faae446cd57301d110165 # v1.5.0
         with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
+          github-token: ${{ steps.app-token.outputs.token }}
           dependency-type: 'all'
           auto-merge: 'true'
           merge-method: 'merge'
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 95f10f8..aac4b34 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -28,11 +28,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        arch:
-          - amd64
-          - arm
-        os:
+        platform:
           - ubuntu-24.04
+          - ubuntu-24.04-arm
         python:
           - "3.11"
           - "3.12"
@@ -41,7 +39,7 @@ jobs:
           # that uses the same venv to run multiple linting sessions
           - "ci_checks_max"
           - "pytest_min"
-    runs-on: ${{ matrix.os }}${{ matrix.arch != 'amd64' && format('-{0}', matrix.arch) || '' }}
+    runs-on: ${{ matrix.platform }}
 
     steps:
       - name: Run nox
@@ -60,7 +58,7 @@ jobs:
     needs: ["nox"]
     # We skip this job only if nox was also skipped
     if: always() && needs.nox.result != 'skipped'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
     env:
       DEPS_RESULT: ${{ needs.nox.result }}
     steps:
@@ -105,15 +103,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        arch:
-          - amd64
-          - arm
-        os:
+        platform:
           - ubuntu-24.04
+          - ubuntu-24.04-arm
         python:
           - "3.11"
           - "3.12"
-    runs-on: ${{ matrix.os }}${{ matrix.arch != 'amd64' && format('-{0}', matrix.arch) || '' }}
+    runs-on: ${{ matrix.platform }}
 
     steps:
       - name: Setup Git
@@ -161,7 +157,7 @@ jobs:
     needs: ["test-installation"]
     # We skip this job only if test-installation was also skipped
     if: always() && needs.test-installation.result != 'skipped'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
     env:
       DEPS_RESULT: ${{ needs.test-installation.result }}
     steps:
@@ -276,7 +272,7 @@ jobs:
       # discussions to create the release announcement in the discussion forums
       contents: write
       discussions: write
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
     steps:
       - name: Download distribution files
         uses: actions/download-artifact@v8
diff --git a/.github/workflows/dco-merge-queue.yml b/.github/workflows/dco-merge-queue.yml
index fb1cd90..d9597ad 100644
--- a/.github/workflows/dco-merge-queue.yml
+++ b/.github/workflows/dco-merge-queue.yml
@@ -5,7 +5,7 @@ on:
 
 jobs:
   DCO:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: ${{ github.actor != 'dependabot[bot]' }}
     steps:
       - run: echo "This DCO job runs on merge_queue event and doesn't check PR contents"
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 8d02c13..c327e7f 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -7,7 +7,7 @@ jobs:
     permissions:
       contents: read
       pull-requests: write
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Labeler
         # XXX: !!! SECURITY WARNING !!!
diff --git a/.github/workflows/release-notes-check.yml b/.github/workflows/release-notes-check.yml
index b8d7509..263c3e2 100644
--- a/.github/workflows/release-notes-check.yml
+++ b/.github/workflows/release-notes-check.yml
@@ -15,7 +15,7 @@ on:
 jobs:
   check-release-notes:
     name: Check release notes are updated
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       pull-requests: read
     steps:
diff --git a/.github/workflows/repo-config-migration.yaml b/.github/workflows/repo-config-migration.yaml
index d214ed2..57a54c3 100644
--- a/.github/workflows/repo-config-migration.yaml
+++ b/.github/workflows/repo-config-migration.yaml
@@ -42,7 +42,7 @@ jobs:
     steps:
       - name: Generate token
         id: create-app-token
-        uses: actions/create-github-app-token@f8d387b68d61c58ab83c6c016672934102569859 # v3.0.0
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         with:
           app-id: ${{ secrets.FREQUENZ_AUTO_DEPENDABOT_APP_ID }}
           private-key: ${{ secrets.FREQUENZ_AUTO_DEPENDABOT_APP_PRIVATE_KEY }}
diff --git a/pyproject.toml b/pyproject.toml
index 542cb6d..e833b07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@
 requires = [
   "setuptools == 82.0.1",
   "setuptools_scm[toml] == 10.0.5",
-  "frequenz-repo-config[lib] == 0.14.0",
+  "frequenz-repo-config[lib] == 0.17.0",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -13,7 +13,8 @@ build-backend = "setuptools.build_meta"
 name = "frequenz-client-electricity-trading"
 description = "Electricity Trading API client for Python"
 readme = "README.md"
-license = { text = "MIT" }
+license = "MIT"
+license-files = ["LICENSE"]
 keywords = [
   "frequenz",
   "python",
@@ -29,7 +30,6 @@ keywords = [
 classifiers = [
   "Development Status :: 3 - Alpha",
   "Intended Audience :: Developers",
-  "License :: OSI Approved :: MIT License",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
   "Topic :: Software Development :: Libraries",
@@ -62,6 +62,7 @@ email = "floss@frequenz.com"
 [project.optional-dependencies]
 dev-flake8 = [
   "flake8 == 7.3.0",
+  "flake8-datetimez == 20.10.0",
   "flake8-docstrings == 1.7.0",
   "flake8-pyproject == 1.2.4", # For reading the flake8 config from pyproject.toml
   "pydoclint == 0.8.3",
@@ -78,7 +79,7 @@ dev-mkdocs = [
   "mkdocs-material == 9.7.6",
   "mkdocstrings[python] == 1.0.3",
   "mkdocstrings-python == 2.0.3",
-  "frequenz-repo-config[lib] == 0.14.0",
+  "frequenz-repo-config[lib] == 0.17.0",
 ]
 dev-mypy = [
   "mypy == 1.19.1",
@@ -89,7 +90,7 @@ dev-mypy = [
   # For checking the noxfile, docs/ script, and tests
   "frequenz-client-electricity-trading[dev-mkdocs,dev-noxfile,dev-pytest]",
 ]
-dev-noxfile = ["nox == 2026.2.9", "frequenz-repo-config[lib] == 0.14.0"]
+dev-noxfile = ["nox == 2026.2.9", "frequenz-repo-config[lib] == 0.17.0"]
 dev-pylint = [
   "pylint == 4.0.5",
   # For checking the noxfile, docs/ script, and tests
@@ -97,7 +98,7 @@ dev-pylint = [
 ]
 dev-pytest = [
   "pytest == 9.0.2",
-  "frequenz-repo-config[extra-lint-examples] == 0.14.0",
+  "frequenz-repo-config[extra-lint-examples] == 0.17.0",
   "pytest-mock == 3.15.1",
   "pytest-asyncio == 1.3.0",
   "async-solipsism == 0.9",