diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d54f9bf..4b19c47 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,11 +17,7 @@ jobs:
       matrix:
         version: ['1.10', '1']
         os: [ubuntu-latest, macOS-latest, windows-latest]
-        arch: [x64]
-        include:
-         - version: '1'
-           os: macos-14
-           arch: aarch64
+        arch: [default]
         # HiGHS segfaults on 32-bit.
         # Upstream is https://github.com/ERGO-Code/HiGHS/issues/769
         # but we decided investigating was a low priority until it
@@ -33,7 +29,7 @@ jobs:
         #     arch: x86
     steps:
       - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}