diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 2eb9b02..892d4c1 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -1,7 +1,9 @@
 name: CI
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      - master
+  pull_request:
 jobs:
   test:
     name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
@@ -17,7 +19,7 @@ jobs:
             os: ubuntu-latest
             arch: x64
           - version: '1'
-            os: ubuntu-latest
+            os: ubuntu-24.04-arm
             arch: aarch64
           - version: '1'
             os: windows-latest