diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b4df253..f757851 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,6 +21,9 @@ jobs:
       - name: Set up Python
         run: uv python install 3.13
 
+      - name: Check lockfile is up to date
+        run: uv lock --check
+
       - name: Install dependencies
         run: uv sync --extra cpu
 
diff --git a/.github/workflows/update-lockfile.yml b/.github/workflows/update-lockfile.yml
deleted file mode 100644
index 46f983c..0000000
--- a/.github/workflows/update-lockfile.yml
+++ /dev/null
@@ -1,63 +0,0 @@
-# .github/workflows/update-lockfile.yml
-name: Update lockfile
-
-on:
-  push:
-    branches:
-      - '**'
-      - '!main'
-    paths:
-      - 'pyproject.toml'
-  workflow_dispatch:
-
-jobs:
-  update-lockfile:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
-
-      - name: Set up Python
-        run: uv python install 3.13
-
-      - name: Regenerate lockfile
-        run: uv lock
-
-      - name: Check for changes
-        id: diff
-        run: |
-          if git diff --quiet uv.lock; then
-            echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-            echo "changed=true" >> "$GITHUB_OUTPUT"
-          fi
-
-      - name: Commit and push updated lockfile
-        if: steps.diff.outputs.changed == 'true'
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git add uv.lock
-          git commit -m "chore: update lockfile"
-
-          if [ "$GITHUB_REF_NAME" = "dev" ]; then
-            # dev is protected — open a PR rather than pushing directly
-            BRANCH="chore/lockfile-$(git rev-parse --short HEAD)"
-            git checkout -b "$BRANCH"
-            git push origin "$BRANCH"
-            gh pr create \
-              --base dev \
-              --head "$BRANCH" \
-              --title "chore: update lockfile" \
-              --body "Automated lockfile update triggered by a \`pyproject.toml\` change on \`dev\`."
-          else
-            git push
-          fi