diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d007caad3a..548eec0966 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,6 +8,9 @@ on:
 jobs:
   macos:
     runs-on: macos-latest
+    strategy:
+      matrix:
+        arch: [arm64, arm]
     steps:
       - uses: actions/checkout@v2
       - run: brew install ninja
@@ -23,7 +26,7 @@ jobs:
         shell: bash
     strategy:
       matrix:
-        arch: [x64, x86, arm64]
+        arch: [arm]
     env:
       EXTRA_FLAGS: 'target_cpu="${{ matrix.arch }}"'
     steps:
@@ -34,3 +37,4 @@ jobs:
       - run: ./build.sh
         working-directory: src
       - run: ./tests/basic.sh src/out/Release/naive
+        if: ${{ matrix.arch != 'arm' }}