diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5de8811eed..a9e5b737b8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,8 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: ['ubuntu-latest', 'windows-latest']
+        # We test against different OSes, because the build toolchain has OS-specific dependencies.
+        os: ['ubuntu-latest', 'windows-latest', 'macos-latest']
         node-version: ["20.x", "18.x", "16.x"]
     steps:
       - uses: actions/checkout@v4