diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 47f00ca5..70bd5907 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -25,15 +25,23 @@ jobs:
         runner:
           - version: '1'
             os: ubuntu-latest
+            arch: x64
           # Minimum supported version
           - version: 'min'
             os: ubuntu-latest
+            arch: x64
+          # x86
+          - version: '1'
+            os: ubuntu-latest
+            arch: x86
           # Windows
           - version: '1'
             os: windows-latest
+            arch: x64
           # macOS
           - version: '1'
             os: macos-latest
+            arch: aarch64
         num_threads:
           - 1
           - 2
@@ -44,6 +52,7 @@ jobs:
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.runner.version }}
+          arch: ${{ matrix.runner.arch }}
 
       - uses: julia-actions/cache@v2