diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 68881db..10136d4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,10 +1,17 @@
 name: Test and build
 
 on:
-  pull_request:
   push:
-    branches:
-      - master
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   test: