diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..4053b74
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,21 @@
+name: Release
+
+on:
+  release:
+    types: [released]
+
+jobs:
+  package:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: haskell-actions/setup@v2
+      - run: cabal clean
+      - run: cabal build
+      - run: cabal sdist
+      
+      - uses: haskell-actions/hackage-publish@v1.1
+        with:
+          hackageToken: ${{ secrets.HACKAGE_AUTH_TOKEN }}
+          publish: false # upload candidate