diff --git a/.github/workflows/build-dev.yml b/.github/workflows/build-dev.yml
index 0991e9d..05aef6b 100644
--- a/.github/workflows/build-dev.yml
+++ b/.github/workflows/build-dev.yml
@@ -34,10 +34,13 @@ jobs:
         with:
           node-version: '18'
 
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v6
+        with:
+          version: 9
+
       - name: Install dependencies
-        run: |
-          npm install -g pnpm
-          pnpm install --frozen-lockfile
+        run: pnpm install --frozen-lockfile
 
       - name: Build for ${{ matrix.platform }}
         run: |
diff --git a/package.json b/package.json
index d5da862..671eb19 100644
--- a/package.json
+++ b/package.json
@@ -11,9 +11,9 @@
     "prepare": "husky install",
     "docs:format": "node scripts/format-docs.js",
     "docs:check": "node scripts/format-docs.js --check",
-    "pkgwin": "node node_modules/pkg/lib-es5/bin.js . -t node18-win-x64 -C GZip -o precompiled/app",
-    "pkglinux": "node node_modules/pkg/lib-es5/bin.js . -t node18-linux-x64 -C GZip -o precompiled/app",
-    "pkgmacos": "node node_modules/pkg/lib-es5/bin.js . -t node18-macos-x64 -C GZip -o precompiled/app"
+    "pkgwin": "node scripts/build-pkg.js . -t node18-win-x64 -C GZip -o precompiled/app",
+    "pkglinux": "node scripts/build-pkg.js . -t node18-linux-x64 -C GZip -o precompiled/app",
+    "pkgmacos": "node scripts/build-pkg.js . -t node18-macos-x64 -C GZip -o precompiled/app"
   },
   "bin": "./app.js",
   "pkg": {
diff --git a/scripts/build-pkg.js b/scripts/build-pkg.js
new file mode 100644
index 0000000..90af314
--- /dev/null
+++ b/scripts/build-pkg.js
@@ -0,0 +1,51 @@
+/**
+ * Invoke the pkg packager (cross-platform, independent of node_modules layout).
+ *
+ * Background: on Windows, pnpm links node_modules/pkg to
+ * node_modules/.pnpm/pkg@<ver>/node_modules/pkg via a junction. Some CI
+ * environments (pnpm 11 + Windows runner) may fail to create that link,
+ * so executing node_modules/pkg/lib-es5/bin.js directly throws
+ * MODULE_NOT_FOUND.
+ *
+ * This script first resolves pkg via require.resolve and falls back to
+ * scanning the .pnpm physical directory, so pkg is found whether the
+ * junction exists or not.
+ */
+const { spawnSync } = require('child_process')
+const fs = require('fs')
+const path = require('path')
+
+function resolvePkgBin() {
+  try {
+    return require.resolve('pkg/lib-es5/bin.js')
+  } catch (err) {
+    // require.resolve failed (e.g. missing node_modules/pkg link): scan .pnpm
+    const pnpmDir = path.join(process.cwd(), 'node_modules', '.pnpm')
+    if (fs.existsSync(pnpmDir)) {
+      const candidates = fs
+        .readdirSync(pnpmDir)
+        .filter((dir) => dir.startsWith('pkg@'))
+        .map((dir) =>
+          path.join(pnpmDir, dir, 'node_modules', 'pkg', 'lib-es5', 'bin.js'),
+        )
+        .filter((file) => fs.existsSync(file))
+      if (candidates.length) {
+        return candidates[0]
+      }
+    }
+    return null
+  }
+}
+
+const bin = resolvePkgBin()
+if (!bin) {
+  console.error(
+    '[build-pkg] pkg executable not found; run `pnpm install --frozen-lockfile` first',
+  )
+  process.exit(1)
+}
+
+const result = spawnSync(process.execPath, [bin, ...process.argv.slice(2)], {
+  stdio: 'inherit',
+})
+process.exit(result.status === null ? 1 : result.status)