diff --git a/.github/workflows/validate-atomics.yml b/.github/workflows/validate-atomics.yml
index 44ecee5e..b3c11f43 100644
--- a/.github/workflows/validate-atomics.yml
+++ b/.github/workflows/validate-atomics.yml
@@ -1,8 +1,9 @@
 name: validate-atomics
 on:
   push:
+    branches: [ master ]
   pull_request:
-    types: [opened, reopened]
+    branches: [ master ]
 jobs:
   validate-atomics:
     runs-on: ubuntu-latest