diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8cbf2c97..59fead0f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,10 @@
 name: Sentinel CI
 
-on: [push]
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
 
 jobs:
   build: