diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 58e94dd..b6c10ff 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -1,9 +1,10 @@
 name: validate
 on:
   push:
-    branches: [main]
+    branches:
+      - main
   pull_request:
-    branches: [main]
+    types: [opened, synchronize]
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true