diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2286dd9..7ed7745 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,10 +1,9 @@
 name: CI
 
 on:
-  push:
-    branches-ignore: ['master']
   pull_request:
     branches: ['master']
+    types: [opened, synchronize, reopened]
 
 jobs:
   test: