diff --git a/.github/workflows/ci-copier.yml b/.github/workflows/ci-copier.yml
index 7ea8461..6cd15ab 100644
--- a/.github/workflows/ci-copier.yml
+++ b/.github/workflows/ci-copier.yml
@@ -1,9 +1,7 @@
 name: CI Copier
 on:
   pull_request:
-  push:
-    branches:
-      - main
+  merge_group:
 
 # Automatically stop old builds on the same branch/PR
 concurrency:
@@ -51,7 +49,6 @@ jobs:
     strategy:
       matrix:
         minimal-python-version: [py38, py310]
-
     steps:
       - name: Checkout branch
         uses: actions/checkout@v4
@@ -59,6 +56,8 @@ jobs:
           ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}
       - name: Set up pixi
         uses: prefix-dev/setup-pixi@ba3bb36eb2066252b2363392b7739741bb777659
+        with:
+          activate-environment: true
       - name: Test generated package CI
         run: |
           # Name of the generated package.
@@ -70,7 +69,7 @@ jobs:
           git config --global user.email "landocalrissian@example.com"
           git config --global user.name "Lando Calrissian"
           # Generate package with default settings + Windows CI.
-          pixi run copier copy \
+          copier copy \
             --data project_name="Package" \
             --data project_short_description="Example Package" \
             --data github_user="LandoCalrissian" \
@@ -80,12 +79,17 @@ jobs:
             --trust \
             . out
           cd out
+          # Replace actions trigger with on: [push]
+          yq eval '.on = ["push"]' -i .github/workflows/ci.yml
+          yq eval '.on = ["push"]' -i .github/workflows/build.yml
+          git add .github/workflows/ci.yml .github/workflows/build.yml
+          git commit -m "Replace actions trigger with on: [push]"
           # Push the generated package's HEAD commit to a `ci/*` branch
           cid=$(git rev-parse HEAD)
-          git push -f "${GITHUB_SERVER_URL/https:\/\//git@}:$GITHUB_REPOSITORY" $cid:refs/heads/ci/$GITHUB_SHA
+          git push -f "${GITHUB_SERVER_URL/https:\/\//git@}:$GITHUB_REPOSITORY" $cid:refs/heads/ci/${GITHUB_SHA}-${{ matrix.minimal-python-version }}
           # Use the GitHub API to wait for the generated package's CI to complete (success or failure).
           # We look for a GitHub Actions run for the HEAD commit ID.
-          WORKFLOW_URL="$GITHUB_API_URL/repos/${GITHUB_REPOSITORY}/actions/runs?branch=ci/${GITHUB_SHA}&head_sha=${cid}"
+          WORKFLOW_URL="$GITHUB_API_URL/repos/${GITHUB_REPOSITORY}/actions/runs?branch=ci/${GITHUB_SHA}-${{ matrix.minimal-python-version }}&head_sha=${cid}"
           echo "Waiting for inner CI to start"
           while (( $(curl -Ls --header "$AUTH" "$WORKFLOW_URL" | jq -r ".workflow_runs | length") < 1 )); do
             sleep 10
@@ -106,9 +110,9 @@ jobs:
           eval $(ssh-agent)
           ssh-add - <<< "${{ secrets.SSH_PRIVATE_KEY }}"
 
-          git push -d "${GITHUB_SERVER_URL/https:\/\//git@}:$GITHUB_REPOSITORY" refs/heads/ci/$GITHUB_SHA
+          git push -d "${GITHUB_SERVER_URL/https:\/\//git@}:$GITHUB_REPOSITORY" refs/heads/ci/$GITHUB_SHA-${{ matrix.minimal-python-version }}
 
-          for line in $(curl -Ls --header "$AUTH" "$GITHUB_API_URL/repos/${GITHUB_REPOSITORY}/actions/runs?branch=ci/${GITHUB_SHA}&head_sha=${cid}" | jq -r ".workflow_runs | .[] | select(.status != \"completed\") | .id")
+          for line in $(curl -Ls --header "$AUTH" "$GITHUB_API_URL/repos/${GITHUB_REPOSITORY}/actions/runs?branch=ci/${GITHUB_SHA}-${{ matrix.minimal-python-version }}&head_sha=${cid}" | jq -r ".workflow_runs | .[] | select(.status != \"completed\") | .id")
           do
             curl -Ls --header "$AUTH" --request POST "$GITHUB_API_URL/repos/${GITHUB_REPOSITORY}/actions/runs/$line/cancel" > /dev/null
           done
diff --git a/README.md b/README.md
index a7994fb..afc39c2 100644
--- a/README.md
+++ b/README.md
@@ -6,13 +6,13 @@ For documentation on pixi see [here](https://pixi.sh).
 ## Usage
 
 ```bash
-pixi exec --spec copier --spec ruamel.yaml --spec ruamel.yaml.jinja2 -- copier copy --trust https://github.com/quantco/copier-template-python-open-source <destination-path>
+pixi exec --spec copier --spec ruamel.yaml -- copier copy --trust https://github.com/quantco/copier-template-python-open-source <destination-path>
 ```
 
 To update to a newer template version:
 
 ```bash
-pixi exec --spec copier --spec ruamel.yaml --spec ruamel.yaml.jinja2 -- copier update --defaults --trust
+pixi exec --spec copier --spec ruamel.yaml -- copier update --defaults --trust
 ```
 
 Note that copier will show `Conflict` for files that have manual changes.
diff --git a/copier.yml b/copier.yml
index 6d42696..7923df0 100644
--- a/copier.yml
+++ b/copier.yml
@@ -58,7 +58,12 @@ minimal_python_version_sortable:
 use_devcontainer:
   type: bool
   help: Should this project use a devcontainer for development?
-  default: no
+  default: false
+
+add_autobump_workflow:
+  type: bool
+  help: Do you want to add a GitHub Workflow to automatically bump `pixi.lock`?
+  default: true
 
 _tasks:
   - '"{{ _copier_python }}" -I -c "import sys; sys.path.insert(0, \"{{ _copier_conf.src_path }}\"); import runpy;
diff --git a/pixi.lock b/pixi.lock
index b87b88a..2f12643 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -26,6 +26,7 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/funcy-2.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gh-2.52.0-he0e2781_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/git-2.45.2-pl5321ha099dd3_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/linux-64/go-yq-4.44.2-h8b461db_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/identify-2.6.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-8.0.0-pyha770c72_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
@@ -118,6 +119,7 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/funcy-2.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/gh-2.52.0-he13f2d6_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/git-2.45.2-pl5321hb0c6a96_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/osx-64/go-yq-4.44.2-hfdf4475_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/identify-2.6.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-8.0.0-pyha770c72_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
@@ -204,6 +206,7 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/funcy-2.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-arm64/gh-2.52.0-h163aea0_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-arm64/git-2.45.2-pl5321h41514c7_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/osx-arm64/go-yq-4.44.2-h99b78c6_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/identify-2.6.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-8.0.0-pyha770c72_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
@@ -289,6 +292,7 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/funcy-2.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/gh-2.52.0-h36e2d1d_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/git-2.45.2-h57928b3_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/win-64/go-yq-4.44.2-h2466b09_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/identify-2.6.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-8.0.0-pyha770c72_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
@@ -1327,6 +1331,67 @@ packages:
   license: GPL-2.0-or-later and LGPL-2.1-or-later
   size: 11871414
   timestamp: 1718524953917
+- kind: conda
+  name: go-yq
+  version: 4.44.2
+  build: h2466b09_0
+  subdir: win-64
+  url: https://conda.anaconda.org/conda-forge/win-64/go-yq-4.44.2-h2466b09_0.conda
+  sha256: 284b26aeef97fea5f8b076f488f1e698c574c74bc92c0f9d694a38b80e9070e2
+  md5: e79173b4d4c48166817d9248b09a314d
+  depends:
+  - ucrt >=10.0.20348.0
+  - vc >=14.2,<15
+  - vc14_runtime >=14.29.30139
+  license: MIT
+  license_family: MIT
+  size: 7330908
+  timestamp: 1718519042900
+- kind: conda
+  name: go-yq
+  version: 4.44.2
+  build: h8b461db_0
+  subdir: linux-64
+  url: https://conda.anaconda.org/conda-forge/linux-64/go-yq-4.44.2-h8b461db_0.conda
+  sha256: be8bf02baa3e1185fa160a349375bcd0b43751aff625722d04226969404760cd
+  md5: d1623ab147bf37c3c083989e1c517a35
+  depends:
+  - __glibc >=2.17
+  - libgcc-ng >=12
+  license: MIT
+  license_family: MIT
+  size: 3468241
+  timestamp: 1718518470574
+- kind: conda
+  name: go-yq
+  version: 4.44.2
+  build: h99b78c6_0
+  subdir: osx-arm64
+  url: https://conda.anaconda.org/conda-forge/osx-arm64/go-yq-4.44.2-h99b78c6_0.conda
+  sha256: 1580203042b6c770ef1ce46c23d10ee7136877f8aa5e77a5c3da0014f3776567
+  md5: 5107663d414ce947d748d668915b0bd0
+  depends:
+  - __osx >=11.0
+  license: MIT
+  license_family: MIT
+  size: 3266981
+  timestamp: 1718518684882
+- kind: conda
+  name: go-yq
+  version: 4.44.2
+  build: hfdf4475_0
+  subdir: osx-64
+  url: https://conda.anaconda.org/conda-forge/osx-64/go-yq-4.44.2-hfdf4475_0.conda
+  sha256: a61539b12e381a85189714890fabb67ad87f75d07bfd7a6338858f794d8f46c8
+  md5: 06f5abffacc647d532cac54532213daf
+  depends:
+  - __osx >=10.13
+  constrains:
+  - __osx>=10.12
+  license: MIT
+  license_family: MIT
+  size: 3510512
+  timestamp: 1718518541178
 - kind: conda
   name: icu
   version: '73.2'
diff --git a/pixi.toml b/pixi.toml
index 30772cc..20e206d 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -13,6 +13,7 @@ pytest = ">=8.2,<9"
 mypy = "*"
 pre-commit = "*"
 gh = "*"
+go-yq = "*"
 
 [feature.lint.dependencies]
 pre-commit = "*"
diff --git a/template/.github/workflows/{% if add_autobump_workflow %}update-lockfiles.yml{% endif %} b/template/.github/workflows/{% if add_autobump_workflow %}update-lockfiles.yml{% endif %}
new file mode 100644
index 0000000..248459e
--- /dev/null
+++ b/template/.github/workflows/{% if add_autobump_workflow %}update-lockfiles.yml{% endif %}	
@@ -0,0 +1,35 @@
+name: Update lockfiles
+permissions:
+  contents: write
+  pull-requests: write
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: 0 5 1 * *
+
+jobs:
+  pixi-update:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up pixi
+        uses: prefix-dev/setup-pixi@ba3bb36eb2066252b2363392b7739741bb777659
+        with:
+          run-install: false
+      - name: Update lockfiles
+        run: |
+          pixi global install pixi-diff-to-markdown
+          pixi update --json --no-install | pixi-diff-to-markdown >> diff.md
+      - name: Create pull request
+        uses: peter-evans/create-pull-request@c5a7806660adbe173f04e3e038b0ccdcd758773c
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: Update pixi lockfile
+          title: Update pixi lockfile
+          body-path: diff.md
+          branch: update-pixi
+          base: main
+          labels: pixi
+          delete-branch: true
+          add-paths: pixi.lock
diff --git a/tests/test_template.py b/tests/test_template.py
index 06fa9a9..c24684e 100644
--- a/tests/test_template.py
+++ b/tests/test_template.py
@@ -45,6 +45,14 @@ def test_devcontainer(generate_project, use_devcontainer):
         assert path.exists() == use_devcontainer
 
 
+@pytest.mark.parametrize("add_autobump_workflow", [True, False])
+def test_add_autobump_workflow(generate_project, add_autobump_workflow):
+    path = generate_project({"add_autobump_workflow": add_autobump_workflow})
+    assert (
+        path / ".github" / "workflows" / "update-lockfiles.yml"
+    ).exists() == add_autobump_workflow
+
+
 @pytest.mark.parametrize(
     "minimal_python_version", ["py38", "py39", "py310", "py311", "py312"]
 )