diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index d5c40805..ce2b3406 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -6,7 +6,10 @@ on:
     branches:
       - master
       - test-branch
-
+  schedule:
+    # 4AM every monday
+    - cron: '0 4 * * 1'
+    
 name: R-CMD-check
 
 jobs: