diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7a61c34..1a33e3d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,5 +1,14 @@
 name: ci
-on: [push]
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    types:
+      - opened
+      - synchronize
+  workflow_dispatch:
+
 jobs:
   build:
     name: Build, lint, and test on Node ${{ matrix.node }} and ${{ matrix.os }}
@@ -38,3 +47,8 @@ jobs:
         uses: paambaati/codeclimate-action@v3.0.0
         env:
           CC_TEST_REPORTER_ID: '${{ secrets.CC_TEST_REPORTER_ID }}'
+
+      - uses: preactjs/compressed-size-action@v2
+        with:
+          repo-token: '${{ secrets.GITHUB_TOKEN }}'
+          build-script: 'build'
diff --git a/.github/workflows/size.yml b/.github/workflows/size.yml
deleted file mode 100644
index 6021cda..0000000
--- a/.github/workflows/size.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-name: size
-on: [pull_request]
-jobs:
-  size:
-    runs-on: ubuntu-latest
-    env:
-      CI_JOB_NUMBER: 1
-    steps:
-      - uses: actions/checkout@v1
-      - uses: andresz1/size-limit-action@v1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}