diff --git a/.github/workflows/compute-checksum.yml b/.github/workflows/compute-checksum.yml
new file mode 100644
index 0000000..3212111
--- /dev/null
+++ b/.github/workflows/compute-checksum.yml
@@ -0,0 +1,19 @@
+name: Compute SHA-256 on Release
+
+on:
+  release:
+    types: [ published ]
+
+jobs:
+  compute-checksum:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Compute SHA-256 checksum
+        run: |
+          curl -sfL https://github.com/pongasoft/jamba/archive/refs/tags/${{ github.event.release.tag_name }}.zip | sha256sum > ${{ github.event.release.tag_name }}.zip_sha256.txt
+
+      - name: Upload checksum to release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: ${{ github.event.release.tag_name }}.zip_sha256.txt