diff --git a/.github/workflows/compressed-size.yml b/.github/workflows/compressed-size.yml
new file mode 100644
index 0000000..53eb1b4
--- /dev/null
+++ b/.github/workflows/compressed-size.yml
@@ -0,0 +1,15 @@
+name: Compressed Size
+
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: preactjs/compressed-size-action@v2
+        with:
+          pattern: dist/index.js
+          repo-token: ${{ secrets.GITHUB_TOKEN }}