diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9f7c5da..28cbef6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,6 +24,7 @@ jobs:
       fail-fast: false
       matrix:
         config:
+        - {os: macos-latest, r: 'release'}
         - {os: windows-latest, r: 'release'}
         - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
         - {os: ubuntu-latest,   r: 'release'}