diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 3993cc2..311718b 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -2,6 +2,7 @@ name: Test
 
 on:
   pull_request:
+      types: [opened, labeled, reopened, synchronize]
 
   workflow_dispatch:
 
@@ -10,6 +11,12 @@ on:
     - trunk
 
 jobs:
+  debug:
+    name: Show debugging information
+    runs-on: ubuntu-latest
+    steps:
+    - run: echo '${{ toJSON(github) }}'
+
   setup_uv_default:
     name: setup-uv [default]
     runs-on: ubuntu-latest
@@ -96,13 +103,21 @@ jobs:
     - run: cargo bundle-licenses --version
 
   update_conda_lockfiles:
-    if: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.ref != 'update-conda-lockfiles' && contains(github.event.pull_request.labels.*.name, 'test-conda-lockfiles') }}
+    if: ${{ github.event_name == 'pull_request' && github.head_ref != 'update-conda-lockfiles' && contains(github.event.pull_request.labels.*.name, 'test-conda-lockfiles') }}
     uses: ./.github/workflows/update-conda-lockfiles.yaml
     secrets: inherit
     with:
-      branch: ${{ github.event.pull_request.head.ref }}
+      branch: ${{ github.head_ref }}
       path: test/update-conda-lockfile
 
+  update_uv_lockfiles:
+    if: ${{ github.event_name == 'pull_request' && github.head_ref != 'update-uv-lockfiles' && contains(github.event.pull_request.labels.*.name, 'test-uv-lockfiles') }}
+    uses: ./.github/workflows/update-uv-lockfiles.yaml
+    secrets: inherit
+    with:
+      branch: ${{ github.head_ref }}
+      path: test/update-uv-lockfile
+
   setup_row:
     name: setup-row [default]
     runs-on: ubuntu-latest
diff --git a/.github/workflows/update-uv-lockfiles.yaml b/.github/workflows/update-uv-lockfiles.yaml
new file mode 100644
index 0000000..0c8015e
--- /dev/null
+++ b/.github/workflows/update-uv-lockfiles.yaml
@@ -0,0 +1,62 @@
+name: Update uv lockfiles
+
+on:
+  workflow_call:
+    inputs:
+      branch:
+        required: true
+        type: string
+      command:
+        default: ./update-lockfiles.sh
+        required: false
+        type: string
+      path:
+        default: .github/workflows/environments
+        required: false
+        type: string
+
+jobs:
+  update:
+    runs-on: ubuntu-24.04
+    steps:
+    - name: Checkout
+      uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+      with:
+        path: code
+        ref: ${{ inputs.branch }}
+
+    - uses: actions/create-github-app-token@5d869da34e18e7287c1daad50e0b8ea0f506ce69 # v1.11.0
+      id: generate-token
+      with:
+        app-id: ${{ secrets.PR_SUBMITTER_APP_ID }}
+        private-key: ${{ secrets.PR_SUBMITTER_PRIVATE_KEY }}
+
+    - name: Create python environment
+      uses: mamba-org/setup-micromamba@617811f69075e3fd3ae68ca64220ad065877f246 # v2.0.0
+      with:
+        micromamba-version: '1.5.8-0'
+        environment-name: update
+        create-args: >-
+          python=3.12
+          uv
+        micromamba-root-path: ${{ github.workspace }}/micromamba
+
+    - name: Configure conda environment variables
+      run: |
+        echo "$MAMBA_ROOT_PREFIX/envs/update/bin" >> $GITHUB_PATH
+
+    - name: Update lockfiles
+      run: ${{ inputs.command }}
+      working-directory: code/${{ inputs.path }}
+
+    - name: Create pull request
+      uses: peter-evans/create-pull-request@5e914681df9dc83aa4e4905692ca88beb2f9e91f # v7.0.5
+      with:
+        base: ${{ inputs.branch }}
+        path: code
+        commit-message: "Update uv lockfiles"
+        branch: update-uv-lockfiles
+        delete-branch: true
+        title: Update uv lockfiles on ${{ inputs.branch }}
+        body: Automated changes by `${{ inputs.command }}`.
+        token: ${{ steps.generate-token.outputs.token }}
diff --git a/README.md b/README.md
index 31520c6..376ff82 100644
--- a/README.md
+++ b/README.md
@@ -122,3 +122,29 @@ To automatically update conda lock files monthly:
       with:
         branch: <name of default branch>
   ```
+
+## update-uv-lockfiles
+
+To automatically update uv lock files monthly:
+1. Prepare a directory with the base `requirements-*.in` files and a script that updates
+   all lock files (see
+   https://github.com/glotzerlab/rowan/tree/master/.github/workflows for an example).
+2. Ask an organization admin to install the pull request submitter bot.
+3. Create a workflow `update-uv-lockfiles.yaml` with the contents:
+
+  ```yaml
+  name: Update uv lockfiles
+
+  on:
+    schedule:
+      - cron: '0 12 1 * *'
+
+    workflow_dispatch:
+
+  jobs:
+    update:
+      uses: glotzerlab/workflows/.github/workflows/update-uv-lockfiles.yaml@0d90feacda686e08bfecc451fc04a8596bd295f5 # 0.4.0
+      secrets: inherit
+      with:
+        branch: <name of default branch>
+  ```
diff --git a/test/update-uv-lockfile/requirements.in b/test/update-uv-lockfile/requirements.in
new file mode 100644
index 0000000..378eac2
--- /dev/null
+++ b/test/update-uv-lockfile/requirements.in
@@ -0,0 +1 @@
+build
diff --git a/test/update-uv-lockfile/requirements.txt b/test/update-uv-lockfile/requirements.txt
new file mode 100644
index 0000000..9c344d0
--- /dev/null
+++ b/test/update-uv-lockfile/requirements.txt
@@ -0,0 +1,8 @@
+# This file was autogenerated by uv via the following command:
+#    uv pip compile --python-version 3.13 --python-platform linux requirements.in
+build==1.1.1
+    # via -r requirements.in
+packaging==24.1
+    # via build
+pyproject-hooks==1.2.0
+    # via build
diff --git a/test/update-uv-lockfile/update-lockfiles.sh b/test/update-uv-lockfile/update-lockfiles.sh
new file mode 100755
index 0000000..a37c865
--- /dev/null
+++ b/test/update-uv-lockfile/update-lockfiles.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# Execute this script to update all lock files to the latest versions of dependencies.
+
+rm -f requirements*.txt
+
+uv pip compile --python-version 3.13 --python-platform linux requirements.in > requirements.txt