diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4d2b99e..1180230 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,11 @@
 name: Default CI
-on: [push, pull_request]
+on:
+  push:
+    branches:
+    - 'master'
+  pull_request:
+    branches:
+    - '**'
 jobs:
   tests:
     runs-on: ubuntu-latest