diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 35eca248..7ac1902a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,10 @@
 # https://help.github.com/en/categories/automating-your-workflow-with-github-actions
 
 on:
-  pull_request:
   push:
+    branches:
+      - master
+  pull_request:
   schedule:
     - cron: '3 3 * * 1'