diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index aac771a..0e6a345 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,13 +2,15 @@ name: build
 
 on:
   push:
+    branches: [main]
+  pull_request:
   schedule:
     - cron: '20 5 * * 1'
   workflow_dispatch:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -27,7 +29,7 @@ jobs:
           - "truffleruby"
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v7
 
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1