diff --git a/.github/workflows/schedule-commit.yaml b/.github/workflows/schedule-commit.yaml
index bafd85f7..c8651741 100644
--- a/.github/workflows/schedule-commit.yaml
+++ b/.github/workflows/schedule-commit.yaml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - {os: macOS-latest,   r: 'release'}
+          - {os: macOS-13,   r: 'release'}
 
     env:
       R_REMOTES_NO_ERRORS_FROM_WARNINGS: true