diff --git a/.github/workflows/github-script-deps.yaml b/.github/workflows/github-script-deps.yaml
new file mode 100644
index 0000000..92c3180
--- /dev/null
+++ b/.github/workflows/github-script-deps.yaml
@@ -0,0 +1,39 @@
+name: Print github-script bundled dep versions
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  versions:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Print versions (from action runtime)
+        uses: actions/github-script@v8
+        with:
+          script: |
+            function versionOf(pkg) {
+              try {
+                return __original_require__(`${pkg}/package.json`).version
+              } catch (err) {
+                return `NOT FOUND (${err.code || err.message})`
+              }
+            }
+
+            const packages = [
+              '@actions/core',
+              '@actions/exec',
+              '@actions/github',
+              '@actions/glob',
+              '@actions/io',
+              '@octokit/core',
+            ]
+
+            const out = Object.fromEntries(packages.map(p => [p, versionOf(p)]))
+
+            console.log(JSON.stringify({
+              node: process.version,
+              ...out,
+            }, null, 2))