diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..031e6b1
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,32 @@
+name: Publish
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24.x
+          registry-url: https://registry.npmjs.org
+          package-manager-cache: false
+
+      - run: npm ci
+
+      - name: Verify release version
+        run: |
+          PACKAGE_VERSION=$(node -p "require('./package.json').version")
+          test "$GITHUB_REF_NAME" = "v$PACKAGE_VERSION"
+
+      - run: npm run build
+      - run: npm test
+      - run: npm publish
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9346da2..5cf376a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## v0.12.0 / 2026-07-18
 ### Added
 - support ESM #44
+- Set up GitHub release action / provenance #46
 
 ### Fixed
 - Fix uploading coverage to coveralls #52