diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0ed7075..57aff09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,17 +34,6 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - name: Read HEAD_COMMIT
-        id: webpack-ref
-        run: echo "ref=$(cat HEAD_COMMIT)" >> "$GITHUB_OUTPUT"
-
-      - name: Checkout webpack
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          repository: webpack/webpack
-          ref: ${{ steps.webpack-ref.outputs.ref }}
-          path: webpack
-
       - name: Setup Node.js
         uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
@@ -54,6 +43,9 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
+      - name: Clone webpack
+        run: npm run clone-webpack
+
       - name: Regenerate docs
         run: npm run generate-docs
 
diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
index 29eaef8..40ff5da 100644
--- a/.github/workflows/sync.yml
+++ b/.github/workflows/sync.yml
@@ -38,14 +38,6 @@ jobs:
             echo "New webpack commit detected, syncing."
           fi
 
-      - name: Checkout webpack
-        if: steps.check.outputs.changed == 'true'
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          repository: webpack/webpack
-          ref: ${{ steps.latest.outputs.latest }}
-          path: webpack
-
       - name: Setup Node.js
         if: steps.check.outputs.changed == 'true'
         uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
@@ -61,6 +53,10 @@ jobs:
         if: steps.check.outputs.changed == 'true'
         run: echo "${{ steps.latest.outputs.latest }}" > HEAD_COMMIT
 
+      - name: Clone webpack
+        if: steps.check.outputs.changed == 'true'
+        run: npm run clone-webpack
+
       - name: Regenerate docs
         if: steps.check.outputs.changed == 'true'
         run: npm run generate-docs
diff --git a/README.md b/README.md
index 24dfb85..1a3a112 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ This ensures documentation stays in sync with upstream webpack without manual in
 
 | Script                  | Description                          |
 | ----------------------- | ------------------------------------ |
+| `npm run clone-webpack` | Clone webpack repo at pinned commit  |
 | `npm run generate-docs` | Generate Markdown from webpack types |
 | `npm run build-html`    | Convert Markdown to HTML             |
 | `npm run build`         | Generate docs + build HTML           |
diff --git a/clone-webpack.mjs b/clone-webpack.mjs
new file mode 100644
index 0000000..578a460
--- /dev/null
+++ b/clone-webpack.mjs
@@ -0,0 +1,23 @@
+import { readFile, access } from 'node:fs/promises';
+import { execFileSync } from 'node:child_process';
+
+const WEBPACK_DIR = 'webpack';
+const REF = (await readFile('HEAD_COMMIT', 'utf-8')).trim();
+
+try {
+  await access(WEBPACK_DIR);
+  execFileSync('git', ['fetch', '--all'], {
+    cwd: WEBPACK_DIR,
+    stdio: 'inherit',
+  });
+} catch {
+  execFileSync(
+    'git',
+    ['clone', 'https://github.com/webpack/webpack.git', WEBPACK_DIR],
+    {
+      stdio: 'inherit',
+    }
+  );
+}
+
+execFileSync('git', ['checkout', REF], { cwd: WEBPACK_DIR, stdio: 'inherit' });
diff --git a/package.json b/package.json
index 029a5c9..b8562d8 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,6 @@
 {
   "scripts": {
+    "clone-webpack": "node clone-webpack.mjs",
     "generate-docs": "node generate-md.mjs",
     "build-html": "doc-kit generate -t web --config-file ./doc-kit.config.mjs",
     "build": "npm run generate-docs && npm run build-html",