diff --git a/.github/workflows/release-runner.yml b/.github/workflows/release-runner.yml
new file mode 100644
index 000000000..1ef0b7899
--- /dev/null
+++ b/.github/workflows/release-runner.yml
@@ -0,0 +1,54 @@
+name: Release runner
+
+on:
+  workflow_dispatch:
+    inputs:
+      bundle-tag:
+        description: 'Tag of the bundle release (e.g., "codeql-bundle-20200826")'
+        required: false
+
+jobs:
+  release-runner:
+    runs-on: ubuntu-latest
+    env:
+      RELEASE_TAG: "${{ github.event.inputs.bundle-tag }}"
+
+    strategy:
+      matrix:
+        extension: ["linux", "macos", "win.exe"]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Build runner
+        run: |
+          cd runner
+          npm install
+          npm run build-runner
+
+      - uses: actions/upload-artifact@v2
+        with:
+          name: codeql-runner-${{matrix.extension}}
+          path: runner/dist/codeql-runner-${{matrix.extension}}
+
+      - name: Resolve Upload URL for the release
+        if: ${{ github.event.inputs.bundle-tag != null }}
+        id: save_url
+        run: |
+          UPLOAD_URL=$(curl -sS \
+                "https://api.github.com/repos/${GITHUB_REPOSITORY}/releases/tags/${RELEASE_TAG}" \
+                -H "Accept: application/json" \
+                -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" | jq .upload_url | sed s/\"//g)
+          echo ${UPLOAD_URL}
+          echo "::set-output name=upload_url::${UPLOAD_URL}"
+
+      - name: Upload Platform Package
+        if: ${{ github.event.inputs.bundle-tag != null }}
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.save_url.outputs.upload_url }}
+          asset_path: runner/dist/codeql-runner-${{matrix.extension}}
+          asset_name: codeql-runner-${{matrix.extension}}
+          asset_content_type: application/octet-stream