diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bc7445f6..6263bee9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,11 @@
-on: [ push, pull_request ]
-
 name: Continuous integration
 
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
 jobs:
   check:
     name: Check