diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
new file mode 100644
index 0000000..c63461a
--- /dev/null
+++ b/.github/workflows/npm-publish.yml
@@ -0,0 +1,21 @@
+name: Publish to NPM
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - package.json # If this didn't change, the package version didn't change.
+
+jobs:
+  publish-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+          registry-url: https://registry.npmjs.org/
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.npm_token}}